My question is on the HTC Desire Z if the GPS would still work without wifi like what does Sense UI have to do with the GPS. Like are the maps already pre-loaded or do I have to use the wifi to get the maps to appear and to have the direction feature. I recently got the T Mobile version of the HTC Desire Z (G2) because I wanted to save money and didn't know they are not really the same phone since no Sense UI. I also realized for the T-Mobile I that I need the wifi to get the GPS directions to work (unless I don't know how to use the GPS). Just wondering for the actual HTC Desire Z which has SenseUI if the GPS would work without having the wifi to load the maps. Basically I am debatting should I sell the TMobile and get the Desire Z since the GPS is important to me and if the lack of Sense UI is causing the problem.