Google I/O

OK, folks. It's time to give away some more registration invites for this year's Google I/O developer conference, June 25-26 in San Francisco.

To be clear, these codes will not get you into Google I/O for free. You'll still have to pony up the $900 general-admission fee, and find your own way to San Francisco. (See this page for complete details on that.) But for many, the financial and geographical hurdles are the easy part — actually being able to register was what's hard. So, we're happy to help Google help you.

For today's contest, just leave a post in this thread telling us your favorite announcement from a previous Google I/O. Maybe it's the Nexus Q. Or Google Glass. Or Google Play Services. Something. Anything. Let's hear it.

We'll leave this open through noon EDT Friday, then pick five winners at random. (Note that winners from Thursday's entries won't be eligible to win again, and you need only enter once here. We'll announce Thursday's winners soon.)