iPac 114 vs. iPac 2490

[jonek]

Hello,

I am looking for a PDA and have been considering the iPac 114 (£150) and the iPac 2490 (£230).
I would like to use it for Sat Nav using Tomtom Navigator 6 (plus WiFi web access, media playing etc.
The 114 seems to score over the 2490 in that it has a faster CPU and has 802.11b/g WiFi and is a lot cheaper!
However the 114 does NOT show as being compatible with Nav6.

Can anyone explain to me the relevant differences?

Many thanks,
- jon.

[jonek]

Can you tell I'm new to this? I really did mean iPAQ - not iPac!! - Doh! :-{