It's still not hitting the bulk of Nexus Ones as far as we can tell, but for what it's worth, Google has unleashed the source code for Android 2.2 today, which is a solid sign that the code's been bulletproofed to the Open Handset Alliance's satisfaction and is ready for deployment across a number of phones from different manufacturers and carriers. It's still ultimately up to a bunch of gatekeepers in suits to decide when various models will get the upgrade, but this is basically zero day -- so let the countdown begin.
