The Treo 600 is out, complete with an upgrade offer for us 300 owners, and you don't even have to give up your old Treo!  (Although if the Serial Number entry works as poorly as it does in the support/download area, I'd be out of luck.)  Offer is good through October 29, so only 19 decision making days left, 4 of which I'll be at PDC.  What to do, what to do?