Well, ive only had Sprint a year now. Its not hard to figure out that alot of things that they may tell you isnt entirely true. (to their knowledge ofcourse) lol
There is a cab file from an HTC phone (which model the device is escapes me at the moment) that enables your Treo 700wx Sprint aswell as Verizon to read SDHC storage cards.
SDHC cab file discussion thread (cab file link included).
http://discussion.wmexperts.com/show....php?p=1343235
I just recieved my 8gb Transcend for $29.99 USD from Newegg.com. Sadly the Treo 700wx doesnt read the full 8gb's. I figured the card is basicly $5.00 more than a 4gb so why not have an 8gb card if someone where to discover a means of using the rest of the 8gb cards potential.
If you like the link to the 8gb SDHC Transcend
http://www.newegg.com/Product/Produc...82E16820208293
enjoy.