That’s a Micro USB-to-USB female adapter, which is required if you want to utilize Honeycomb’s new USB hosting feature on the Xoom. It’s obscure enough that your local Best Buy probably won’t carry it, but I managed to swing one on Amazon for less than the cost of shipping.
I whole-heartily recommend Motorola Xoom owners pick one up, because USB hosting is one of the main features Honeycomb has over Apple and iOS. Honeycomb 3.1 users can now plug in and use external mice, trackballs, keyboards, and game controllers – really, any USB-powered peripheral. And it works really well.
As I mentioned in my ASUS Eee Pad Transformer review, I'm no fan of navigating Honeycomb via cursor, but the update does well enough to make it an intuitive experience (mouse clicks take the place of finger taps) that I can understand its appeal. Also, it will work very well when used with remotedesktop apps like LogMeIn Ignition. The same goes for keyboards. There is now no need to invest in a Bluetooth keyboard (which Honeycomb 3.1 also supports); any old USB keyboard will now work.
Gamepad support portends good things for Android as a gaming platform. We’ve said it time and again on TabletPCReview that great gaming requires buttons. I easily connected my XBOX 360 controller to the Xoom, and Google claims it will work with others, like PS3 controllers and generic PC gamepads.
This far into the release, most games I tested, including Gun Bros and Dungeon Defenders aren’t properly mapped to an external controller, but the one that was, Cordy, played like a new game. When I first reviewed the Xoom, I dismissed Cordy because the touch-based control scheme was far too clunk for the platform puzzler, but with the XBOX controller, I actually enjoyed the freebie app.
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