I have the opposite impression of the Micro USB charging: If I need to charge the Xyboard all I need is a standard mini USB cable. If I lose the proprietary charger for the Xoom I'm f***** until I order and receive a new one. I am quite pleased with the change to micro USB charging.
What I like about my xyboard charger though is that I can also charge my phone with it, which is convenient at times!
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