I'm thinking of buying the Belkin USB to InfraRed Smartbeam, but just want to be sure it will be compatible with my ipaq 4350 and (preferably) with my c-pens (800 and 600C).

The reason I'm not sure is because the latest model (F5U235au) is the latest IrDa standard (1.3) and I don't know whether it's backwards compatible with older devices.

As always, any advice would be much appreciated. :)

P.S. Does anyone here own a C-pen (any model)?