As was expected, the load on the registration servers for the $900 (or $300 for a limited number of academic) tickets was high. This year, Google required that have both Google Wallet and Google+ accounts, and the Wallet part of the equation seemed to not add up, as payment seemed to be a major issue for early attempted buyers.
We can confirm that we actually reached the payment stage. At that point, though, the site said to wait patiently while it validated the purchase. Instead, the purchase never went through, instead redirecting us to the registration home page of Google I/O.
Google is doing its best to add numerous remote ways of accessing content. There will be live streaming coverage of keynotes, sessions and more. The company is also offering Google I/O Extended, which offers local viewing gathering sites for Google developers hosted at Google’s regional and international offices, Google Developer Groups, and at schools by student ambassadors.
One thing Google can't offer to those who don't go in person: a new device or devices that will sport Key Lime Pie (Android 5.0) before it hits the market. At Google I/O 2012, Google announced the Nexus 7, the first quad-core 7-inch tablet. They also gave it to attendees.
In addition, the 6,000 Google I/O 2012 attendees received a Galaxy Nexus smartphone, the latest OTA update of Jelly Bean (4.1), and the Nexus Q.