Wow, talk about a sudden influx of new phone choices. Within the span of just a few weeks, American mobile users have been introduced to Palm’s Pre on Sprint, Apple’s iPhone 3GS on AT&T and now T-Mobile’s myTouch 3G on (you guessed it) T-Mobile USA. Officially, this phone is the followup to the T-Mobile G1, the planet’s first-ever Android-based cellular phone.The myTouch 3G boasts an updated look and feel, with cleaner lines, more curves and support for T-Mobile’s growing 3G network. Of course, the overall