content: A few friends bought the 600 when it first came out--nightmare quality problems. But it looks like Palm's worked the bugs out, and prices are coming down because of the 650. I have Cingular service and it works great just about anywhere; if you travel around the country Cingular or Verizon are safe (but relatively expensive) bets. The only difficulty I have with the 600 is the keypad--the keys are small packed tightly together. Otherwise, screen navigation is easy, battery life good, phone sound quality better than any standard cell phone I've used.