I've been looking at the Rugby lately and had almost decided on buying it until I've read reviews about the reception and sound quality. Out of the very few phones available for PTT on AT&T, what phones do you like the best and why? I'm trying to decide where I want to put my money. I'm buying basically for the PTT, but I want to find out which phones (besides Blackberry) have made the best impression. Thanks in advance for your input.