San Francisco, CA (written by Charlie Szold/USA Today) -- A full live blog transcript of the event follows:
2:48 p.m.: That's a wrap! Let's attempt to sum up what happened as Google kicked off its annual developer's conference with a keynote event:
-Google unveiled Android 4.1, also known as Jelly Bean, which should be faster and more intuitive than its predecessor.
-Google unveiled the Nexus 7 tablet, which will sell for $199 and ship starting in mid July.
-Google introduced the Nexus Q, a home media device that will sell for $299 and also be available in mid July.
-In case all that wasn't enough, we got the closest look yet at Project Glass, including a demonstration including skydivers, bikers and rappellers. U.S.-based Google I/O developers will be able to get their hands on Project Glass starting next year for $1,500.
For a detailed review of the keynote, check out our live recap below:
2:43 p.m.: Google is giving every developer at I/O a Galaxy Nexus phone, the new Nexus 7 tablet, and the Nexus Q. Big cheers from the crowd for that.
2:40 p.m.: Somehow after that we're BACK on Google+ Events. A video is playing showing how it works. Lots of happy looking people, nice photos.
2:37 p.m.: Project Glass will be available for pre-order by U.S.-based Google I/O developers. It will cost $1,500 and will ship early next year. "This is a really new technology and really want all of you (developers) to help shape it," Brin says.
2:22 p.m.: Project Glass is designed to be close to your senses, but not get in the way of them. "If this device is not ridiculously light, it doesn't belong on your face." The latest prototype of the glasses weighs less on the nose than many sunglasses.
2:20 p.m.: Now we get to hear a little bit about Project Glass. There's a touchpad and button on the sides to control the glasses as well as a microphone and speaker. There is a gyroscope, an accelerometer and compass built in.
2:12 p.m.: And they're out! The visuals from the jump are being shown live using Google+ hangouts. Oh, and they safely landed too (on the roof of the Google I/O conference nonetheless.
2:10 p.m.: Brin has a few friends in an airplane over San Francisco, also wearing Project Glass. Looks like they're about to jump out of the plane and give us a first-person view of the jump.
2:08 p.m.: Now Sergey Brin is on stage wearing "Project Glass." "This demo can go wrong in about a million different ways," he says.
2:06 p.m.: "Party Mode" in Google+ Events lets people take and immediately share photos real time. Google+ will then put all the photos together in chronological order so you can see all photos taken at an event together in one place.
2:02 p.m.: Now we're talking about "Google+ Events." It allows people to invite friends to events, whether on Google+ or not. The event will automatically get added to Google calendars.
1:57 p.m.: The Google+ tablet app will be available on the iPad as well as Android tablets. Android tablet app is available today, but the iPad app will be available in the near future.
1:52 p.m.: Google is adding a tablet specific app for Google+. More people use Google+ on mobile than on desktop, according to Vic Gundotra.
1:46 p.m.: The Nexus Q is available for $299 in the U.S. only for now. You can order today and it will ship starting in mid July.
1:43 p.m.: The Nexus Q is a "cloud connected jukebox." That means friends can add songs from their libraries to Nexus Q. People can also add songs, shuffle or take songs off of the Nexus Q music que.
1:36 p.m.: Google introduces Nexus Q, a small Android-powered computer that connects to media you've stored in the cloud. It's designed to be used in the home and plugs into speakers and TVs in your house.
1:33 p.m.: The Nexus 7 will cost $199, and it comes with a $25 credit to spend in Google Play as well as some other free movies and magazines. You can order it today. Orders will start shipping in mid July.
1:25 p.m.: Nexus 7 is going to have a "powerful new recommendation engine." It will recommened new shows, movies, music and apps. The widget will get smarter and better the more you use it.
1:19 p.m.: The Nexus 7 will have an 1280x800 screen, a Tegra 3 processor, a front-facing camera and up to nine hours of video playback.
1:18 p.m.: Google has partnered with Asus to produce Nexus 7, a 7-inch tablet that runs the Jelly Bean OS.
1:14 p.m.: Engineering Director Chris Yerga is on stage talking about Google Play. He says there are 1.5 billion app installs every month. There have been 20 billion app installs overall.
1:11 p.m.: Jelly Bean will be available to the Galaxy Nexus, Nexus S and Motorola Xoom starting in mid July.
1:07 p.m.: Barra in showing "Google Now," which uses search history, location, calendar information and more to alert you to events, interesting places, faster travel routes and more. Google Now will also tell you sports scores for your favorite team. You don't have to choose what your favorite sport team is because it can tell based on your search history.
1:00 p.m.: Jelly Bean will use Google Knowledge Graph to give intuitive answers to questions. If you want to know how much the Earth weighs, the Jelly Bean Google search will show you the answer. You can also speak questions directly to the Google search and the phone will speak the answers back to you.
12:55 p.m.: Barra is now talking about the camera. Ice Cream Sandwich made it easy to take photos really quickly, but Jelly Bean will make it really easy to look at the photos quickly. You can take photos and look at them all quickly and seemlessly using one camera app.
12:52 p.m.: Director of Product Managment Hugo Barra is on stage talking about voice typing, which he says usually doesn't work well if you don't have a strong data connection. Barra says the voice-recognition software has been shrunk down so it now fits within the Jelly Bean OS -- no data connection needed.
12:47 p.m.: Google's Android Engineering Director Dave Burk is talking about "Project Butter," which aims to make using an Android faster and smoother. A video is playing using a high-speed camera to show how much faster Jelly Bean is versus the last version of Android.
12:42 p.m.: Google just unveiled Android 4.1, also known as Jelly Bean. "We want things to be simple, beautiful and really smart."
12:39 p.m.: Vic Gundotra, the senior vice president of social business for Google just thanked Google developers for choosing Google. He also asked everyone to turn off their mobile hotspots.
Update at 12:36 p.m.: It's go time! The livestream from Google I/O is now up and running. Stick with us for updates as they come.
Original post:Google is expected to unveil a host of new products during a keynote address at the Google I/O conference today in San Francisco.
Among the most buzzed about possibilities: a 7-inch Google Nexus tablet running a new version of the Android software; a preview of "Project Glass," Google's codename for augmented-reality eyeglasses; a voice-assistant similar to Apple's Siri.
We'll be live blogging the conference here starting at 12:30 p.m. ET.
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