Fi,
Being in a similar situation to yourself, I have an Ipaq 3955, and am using a CF receiver (got off eBay for 70 quid) a CF expansoin jacket (c/w extra battery). I ended up plugging my setup into my intercom, and it's clear upto 75 mph. The problem you will have when using the setup on a bike is
1/ keeping the ipaq system running for more than 2-3 hrs
this can be overcome by either using a battery extender, or charging off the bike.
2/ keeping the BT receiver dry (try using a re-selable poly bag)
3/ hearing the instructions
Again get the best intercom/headphones you can afford
4/ my personal choice is TotmTom
Neil |