Features:

• Laser technology delivers 20 times the performance of standard optical tracking
• Pre-programmed side button launches Dashboard
• Miniature sensors detect even the slightest movement
• Top-shell design matches other Apple products
• Bluetooth technology and Touch-sensitive technology

Editor Reviews:

Product Description:
The Mighty Mouse's tracking engine is based on powerful laser technology that delivers 20 times the performance of standard optical tracking, giving you more accuracy and responsiveness on more surfaces. It works just as well on your office desk as it does on a table at your favorite coffee spot without a mousepad. The Might Mouse combines the capability of a multibutton mouse with Apple's signature top-shell design for both form and function. Mighty Mouse's Scroll Ball features miniature sensors that allow you to manipulate what appears on your screen merely by moving your finger. The 360-degrees scrolling perfectly positions to roll smoothly under just one finger. Touch-sensitive technology under Mighty Mouse's seamless top shell detect where you're clicking, transforming your sleek, one-button mouse into a two-button wonder. Pan images in iPhoto, view timelines in iMovie HD and Final Cut Pro, traverse bars in GarageBand and Logic Pro while sipping your morning cup of coffee or typing. Pre-programmed to launch Dashboard, Mighty Mouse's side buttons show you all your open windows in Expose with a squeeze. Mac OS X gives you the capability to choose any application from the intuitive System Preference pane.

Rating : - Innovative design, short life
This mouse has a fine design but is not a good deal for the money. I love the wirelessness, it is recognized by the Mac semi-reliably, and it tracks well. Clicking is awkward, it devours batteries (I use NiMH's), and worst of all ... the scrollwheel inevitably breaks. Once you get used to having the wheel you won't want to lose it, but you will.

My Mighty Mouse will not scroll down and I can no longer revive it. I have never been able to right/left click reliably (some say the trick is to first lift your finger, which is not easy. Finger position is sensed capacitively, not by pressure, as mentioned below.) I did not even want to get this mouse a year ago given all the bad press -- check out the Apple Store site! -- but it came bundled. They took the dirt-collecting defects of the old rollerball mice and put them on top of a laser mouse.

TIPS:
There are several approaches to fixing it; none works for me any more. You can clean from outside using water or alcohol; one poster suggested Purell. You can move the ball around vigorously to know teh dirt loose -- that worked for me for about a year. And you can disassemble the mouse usingh takeapart guides on the web or youtube, it's not that difficult, and carefully take the ball assembly apart. There are four magnetic rollers arounf the ball and they WILL be dirty. I have cleaned and swapped them around without no luck. I reseated the ribbon cable, too. (While you're there you can check whether the foil is properly stuck to the upper shell. It is the sensor for hand position and often malfunctions in distinguishing right/left clicks, including for me.) I think the Hall effect pickup or something on my circuit board is defective.

Whatever the solution, the Mighty Mouse is a neat design with poor engineering. When it works, it's great, and I love using bluetooth. Now I don't really feel cheated only because my expectations were so low to begin with. Good luck!!