I have had both keyboards and they are quite different in appearance - particularly with the dedicated number key row - I use the Palm universal currently with my x51v and it works fine. I am have not been able to get the hot keys to work, but I believe that that is a driver issue. I much prefer the Palm Universal (I bought it off ebay sans instructions, and it did me 15 minutes to figure out how to open it...

) otherwise, great keyboard. Waiting for an updated driver though. ( I wish the original metallic think outside keyboard that I used with my old Visor would be introduced with IR - that was one *amazing* keyboard...)
I use the driver off the PalmOne site.
see this thread..
http://www.aximsite.com/boards/showt...eyboard+driver