I spend a considerable time on the bike and run several things requiring power, I have a dash mounted 12v socket and that powers my Sat Nav, but also have video camera/blackberry/ Sony phone charger/ compact camera and various other things requiring a USB port.
Previously I unplugged the Sat Nav and used an adapter for this, but obviously that ment I couldn't use the Sat Nav at the same time, another slight annoyance was the fact my polarized sunglasses made the LED clock on the dash hard to read.
I found this solution
On the Left is the standard 12v socket, on the right the new USB one; both ignition controlled and independently fused and yes the lid is a clock.
Pretty neat I thought.