Queeziryder,
Have you considered :-
1 The Emtac sleeve appears to be fgood or a bike, look at the review @
www.pocketgps.co.uk/emtacsleeve.php,
or
2 I was also considering the Fortuna GPS MART (its got B/T but can be wired to pda, + its a GPS on its own with a display, ww.pocketgps.co.uk/gpsmart.php
as u know i want it for car/ bike use too , best £ 130 so far, think i will go for this , could put it under seat if b/t mode or in tank bag wired togther , seems good, also records speed max average + routes
let me know what u think?