If you've just returned from the Apple Store, having purchased your Magic Track, you might want to also visit <Apple's site> for an update to 10.6.4. Or it may now show up on Software Update. 
Until I get one, I'll make do with this:[attachment=1922:Get_A_Frame.gif]
And, no batteries required!!!

I'll be looking forward to some reviews/user comments on its capabilities. As much as I like the Mighty Mouse, it might be great to completely avoid any "mouse" with mechanical parts (like the current Apple Mouse). The added area could make things even more interesting and maybe even less fatiguing? We'll see. The pen capability is something I've never experienced and it may just be something else to lose on my real desktop (Sweety [the cat that lives with us] loves to discover new items and knock them to the floor for me!
). And it would require another stop from the keyboard to the device...