Looking at either an HP5550 or the HP4150..
The 5550 has more memory than the 4150 but the 4150 has IrDA..
Does anyone have either of these PDA's, is the 5550 really worth the extra £££?
Also looking at GPS for the PDA, either Navmans 4410BT unit or the 3450 Jacket style units...
Anyone got any gen on any of this stuff?