Tech talk - Mighty Mouse gets disappeared?

I'm a fan of Apple computers, but was 100% underwhelmed by the Mighty Mouse. The scroll ball was nifty when it was new, but there was no satisfactory way of cleaning it, and the Bluetooth interface was absolute crap. (I bought two of them before I said no mas and gave the Targus Wireless Mouse a shot.)

Evidently, I wasn't the only dissatisfied user--as of today, the Mighty Mouse appears to have been replaced with the Magic Mouse. "Look, Ma, no scroll ball!"

For the moment, I'm OK with the Targus and not in a hurry to drop $70 on the new MM. You'd never mistake the Targus for an Apple-designed product--it's awfully twitchy until you get used to it, and it's less customizable than I'd prefer. But rather than a ball, it has a glass lens on top of the mouse that allows you to scroll with tiny motions of your index finger, i.e., nothing to get dirty.

I suspect it will last until my dog drives her nose under my forearm and sends the thing flying across the room, which is one of her favorite tricks.