Coming from the iphone, those bottom buttons on the Vibrant are so difficult! First, it often takes some hunting to get them to respond, especially the far left one, which take several attempts quite often. Because they're not tactical in the dark, it's highly problematic that they LEDs time-out after a measly 3 seconds! What's the point of the LEDs if they're going to shine for that short of time? I'd have to say this is the most frustrating part of this phone. Hopefully, these woes can be cured with a software update?