I'm rocking the Samsung Galaxy 3 right now.Screen just cracked so I need to upgrade.I'm on T-Mobile.With my G3 now I only use a 2GB sdCard and it fills up every other month with pics/videos.Should I go with the 16GB or 64GB iPhone?Any performance pros/cons between the two devices?I can get the G5 for $21 a month or the iPhone for $27 a month