Has anybody had experience with the new Garmin Zumo? It seems like it has lots of features that would be great on the bike, but it looks like they only have maps of North America and Europe available for it. What I find appealing includes the big screen with glove-friendly buttons, waterproof case, MP3 player, XM traffic and weather and Bluetooth compatability.

So I hate to admit this, but I have never had a GPS before. It's not that I'm afraid of technology, it just that I know as soon as I cross that threshold I suddenly won't be able to function without it (like fuel guages and XM radio). Now I'm planning a lot more traveling in other countries, and it's time to make the leap.

Any input from those more experienced with GPS? Does the Zumo look like it has good potential for international travel? Are maps usually available from other sources for other countries? How does the GPS function if you don't have a corresponding map module loaded, or does it work at all? Is there another model that you think would be better suited to international travel? Are there other models that have the same features I like that has more maps available? I've also been looking at the Street Pilot 2820.

Any help you can provide would be much appreciated!