Hi,
I'd like to share with you this tool I've been using for a while on my TomTom GO 630.
Le Web B@zar > Tripmaster
ecran_jour_avec_gps.jpg

Basically it allows you to track your trip (so that you can view it on Google Earth for example!), to have a compass, to check average speed, etc.

Are there maybe other similar tools you're using?

Thanks!