Getting a new phone on AT&T. Really like the 920 but the availability of apps makes me nervous, especially with the whole Google blocking MS services deal that's been going on recently. I don't like the SGS3 leaving the HTC One X as the top Android subsidized on AT&T, how does that compare to the Nexus 4? Nexus 4 worth the extra cash up front? Really trying to decide which to buy.