PDA phone (excluding iphone).? My parerents are adding 2 lines for me and my sister in June. It will be my first non-prepaid phone. Any recommendations? I want a PDA. I'll pay a good price but not as much as the iphone. The blackjack has pretty much everything i need: memory card slot for capacity, video recording, and a full keyboard (and of course the obvious camera & bluetooth and such but if it's a PDA it has that). I'll also accept pros & cons of samsung blackjack owners. Thanx:]