I'll add one comment. Went from iPhone to Android (Nexus S 4G) nearly two years ago now. US based. One of the biggest issues I have is around network connectivity. I find that the overall phone's performance is hugely impacted by the quality of the network signal. The phone can't hold the wireless connection like similar Apple devices can and when it's switching between wireless and cell tower the entire experience just seems to go south. Agree Google Play would make it hard to leave now. Getting a notification 22 minutes before your appointment saying "based on traffic you should leave now to be on time" is awesome.

Edit: replace Play with Now