Good point - can you set key combinations with a factory default Treo or do you need additional software?
You can also get creative with the custom key mapping. For example, using PocketNester I was able to map "RIGHT" and the "B" buttons on the NES to just simply "right" on the Treo directional pad. '
This way whenever you run your always holding B too, allowing you to do those ever so important Run + Jump moves.
Accessing email? Pffff, I just want this thing to play games!