Resistive touchscreens work best with a stylus. Capacitive touchscreens work best with your fingers. The iphone, and G1 use capacitive screens while most windows mobile devices use resistive screens.
"According to a panel of bankers at Celent Innovation and Insight Day, mobile banking has moved beyond the hype to the next step in banking’s evolution." Mobile banking product managers from different banks asserted that mobile is now an essential part of banks' delivery strategy. Mobile banking is a sticky service. Those who use it tend to stay with the bank. Bank of America is starting to see a more traditional distribution of mobile banking users. When they first offered mobile banking, it was primarily used by a very young demographic. Now they are starting to see their mobile user base demographic align more with their overall demographic.