Apple's Mighty Mouse was one of the most loved and loathed rodents of all time. When it worked, it was a magnificent productivity booster for Mac users. Unfortunately, over time, even after hours and hours of vigorous rubbing, the top-mounted trackball would become so ensnared in hand-jam that owners were left with two options: delicately splay the mouse for a bit of X-acto home surgery or smash it with a vengeance hammer until justice is served. So maybe now you can understand all the hopeful fuss made over its successor: the Magic Mouse. It's now shipping to those of you who ordered it separately from its iMac bundle. Snow L