Joseph........ quote from PacifiNeotek's site:
"Does OmniRemote™ work with the Palm V?
Yes, OmniRemote™ v1.14 or later is compatible with the Palm IIIx and Palm V."
The Vx is just a version with more memory.
As far as addding their IR transmitter module to increase IR distance.....
QUOTE: "OmniRemote™ modules plug into the bottom of any Pilot (except Palm V and Visor) and transmit an IR beam 400% more powerful than a true Palm III and they don't even require batteries."
However, check out this site [Link: pro-bono.net]
I hope this info helps!!!