Last night I compared the i500 to the new Treo 650. I am hooked on the clamshell design (I HATED the way the 650 felt up to my ear), but could not justify it once I saw how awesome the 650's new Palm OS and graphics were. A rep just told me about the i550 yesterday. It would be the ultimate combo of both worlds if it will ever come out! I am willing to try waiting for a few more months... Are there any major features the Treo 650 has that the i550 doesn't?