I got tired of looking down into the tankbag window and double-stick'd a dash mount on the upper yoke.
It it powered by the patent pending limited edition CLB 5-Volt USB Cheesebox outlet, details available elsewhere on this forum.
The phone is an HTC P3600 with built in 12 channel GPS receiver. It is running TomTom Navigator 6 on WM6 OS. There isn't much too look at on the display as it autoscaled to the end of my driveway while waiting to move.
I never played with a Zumo but I like this better than my previous Garmin handhelds which did not speak directions.
This will communicate to my helmet via Bluetooth if I ever find a headset loud enough to deal with wind noise and ear plugs.
TomTom has large enough buttons to make the touch screen useful through summer gloves. Routing, lookup and waypoint management seem intuitive enough for an ex Garmin user.
The screen could be a bit brighter.
It isn't waterproof, but sandwich bags are.
Not too many compromises for getting everything in one device.