Got my Microsoft's Bluetooth IntelliMouse Explorer Mouse and it works, almost. The accompanying dongle was connected to the the second USB port on the keyboard and evoked a complaining dialog. The D-Link DBT-120 dongle was substituted and pairing was successful. The mouse left-button produced a single Click and the right-button was Control-Click. The scroll wheel and the two thumb buttons were inoperative. The Microsoft dongle is an ungainly contraption but is supplied with an alternative installation base with a cable that will permit connection to an primary, unshared USB port like on the back side of a tower or a powered-hub. The specs on the dongle states 5V at 500ma which is the total power supply rating of a primary USB port. The mouse seems large, but comfortable. The documentation is very poor. After some use it does seem that this right-hand-only device might be adequate and in time there might be some adequate software. Mac software for the hardwired IntelliMouse Explorer (Microsoft Mouse App 3.1.0) was tried. The right-key Control-Click function could not be changed nor could any scroll function of the wheel be achieved. The use for the thumb buttons are a mystery. Any experience by others would be welcome. Tom