I prefer PDAwin TV Remote Controller for any PocketPC. I've tried Omniremote before, but was not as impressed.
The nice thing about PDAwin's software, is that it is almost an exact emulator of a Pronto TSU6000. You even use the same software (ProntoEdit) to create the CCF files for it. You can find tons of information all around the place here at Remote Central regarding files, tips, tutorials, etc. for making CCFs for Pronto remotes.....therefore, you can just apply these to the PDAwin software.
And it's also in color on the iPaq....so that's a definite plus!
Jordan M. Wigley
Aximsite.com
jordan@aximsite.com