I think this is a good idea for functionality. I don't like how the 30 pin connects on the iPad2. I don't think Apple will put on two connectors because they are more concerned about clean lines.Do you think in the future iPads maybe switch to the MagSafe power supply like current MacBooks instead of the 30 pin USB dock connectors that exist now?
It's also very easy to scratch your charging port with the cable.
In a few years there will be no wires for anything. Mark my words. Also, batteries will be way better.
Sounds sarcastic, but I hope not.