I made the mistake of buying 2 reconditoned treo600s on ebay, that are failing fast. I have had a family plan (4 phones) on sprint for years, but don't have any service committments so am thinking about using the need for two new phones to switch providers. The newer treo700p is very expensive compared to the treo680 offered by cingular. But, reliablity is also very important to me, I don't have a land line. I like to ride my bike in the sticks and get a signal (so this is a tad cycling related). ANyone have any experience with cingular, good or bad, or have any other advice to give me? Obviously my phone has to work well in texas, my daughters has to work well in Wellesley MA and woods hole MA.