Found a nice article on Code Project about using gesture API's on Windows Mobile 6.5 devices.
Hit the link and give it a read. And off I go to try the program out.
Update:
Well, I gave the program a try and it works nicely. I have one concern however. When you double tap, you get a GID_SELECT message first and then GID_DOUBLESELECT, but what if I want to handle both messages differently? Like for example in a game where I want GID_SELECT and GID_DOUBLESELECT to do different things exclusively. I don't want the SELECT code executing when the user DOUBLESELECTs. Is this a valid concern?