Google's last Android-centric event, Google I/O in the middle of last year, treated us to a pair of delectable demos that may now finally be turning into mobile realities. One was a web client for the Android Market with OTA installations -- you just browse to an app you want to install while on your desktop and choose to push it to your Android device -- and the other was a cloud-based music backup and streaming service. The latter has since picked up the moniker of
