Everytrail GPS

[pepsiman]

You could add some different application's via the bluetooth headset that will measure the heart beat.

That would be cool, also maybe something attached to your shoe or pedal to show how much pedaling has been done. A bit like the Nike app, there is an attachment that goes on your trainer.

Yes this with the pedal thing might work good, and give results of cycling even indoor in some fitness center . I read on some forum that sportypal is working on something like that to do with the phone, but i really don't know how that's gonna work out.