Just got a MP on 8/6, and just started using a BT KB and mouse. Just as an FYI to those people just buying an MP, your wires might still be miss labeled. There are 4 wires labeled inside the case: 1, 2, 3, BT. 2,3 are used for the Airport 1 should be the BT antenna BT - WTF? who knows, it sure isn't the BT antenna. The BT module was originally installed on the BT labled wire, BT mouse performance was horrible, skipping all over the place, bad tracking. Switched Wire to the one labled '1' and all is well. Just wanted to post this as an update to any new MP buyers looking to add BT, or if the BT performance is crap.