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I really like the logitech mx revolution, though not a 'bluetooth' device I find, for me, this is the most comfortable and usable pointing device around. Give it a try.

Dan
 
I'm usually not too fussy when it comes to the feel and comfort... but it'd like to actually try them out. Unfortunately, there's not many stores around here that has mice on display... but I've got it narrowed down to three so far.
 
I have been very dissatisfied with every bluetooth mouse i've used with OS X, including the logitech V470, an MS bluetooth mouse, and a Kensington mouse. My Microsoft bluetrack mouse has finally crapped out on me today... so I took another plunge into the world of bluetooth mice... one last chance! I ordered the new Logitech M555B! Wish me luck! I will report back with impressions...
 
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