I was long awaiting the release of the Logitech MX900 mouse which is basically the MX700 but with a Bluetooth connection. They have only just gone on sale here in the UK. However, I was dissappointed to see that it only had Windows support on the box, so I rang Logitech and they confirmed they only support PC's with this mouse.
Despite these warnings, I purchased it and it worked in Panther with my 12 inch PowerBook and its internal Bluetooth module. Just set it up in the same way you would an Apple Bluetooth mouse. Will the Bluetooth setup assistant, I had the mouse working in about three clicks.
We will need a driver from Logitech in order to configure all of the buttons on the mouse, but for the time being Exposé sees all of the buttons.
Mac OS X Hints
http://hints.macworld.com/article.php?story=2004011418482378