The year is only a little more than half over, but a lot has happened in the technology world since January.
Much of it has been good: Apple in March launched the iPad 2, a successful follow-up to the company's original tablet device. Intel released Sandy Bridge, a powerful new generation of Core chips. Amazon came out with an online music player and storage service. And Google unleashed Google+, its new social network.
The rest of 2011 looks even more exciting with rumors of a new iPhone, more previews of Windows 8 expected, and Apple's OS X Lion just out.
But 2011 has had its share of lows, disappointments, and outright failures, too. An unreleased smartphone is on the fast track to nowhere, a PlayBook tablet came out missing a few pages, and a long-awaited video game finally arrived--to widespread derision. Here's a look back at the most dismal tech events of 2011 thus far.