I was gonna go for a Pronto, but had an old IPAQ 3630 (pda) lying around.
It was cheaper for me to use that in conjunction with a Total Remote dongle and made my own CCF file.

The advantages for me where:
It is in colour.
Has loads of Memory
Has a calculator
Has my contacts
Has a Gameboy emulator installed. (Does anyone know if there is a version of Mame for PPC?).

It all came down to price V functionality.

If I did not already have the iPAQ I would have got a Pronto.

Cheers

Sean