Released with the iMac in 1998 and included with all successive desktop Macs for the next 2 years, the round "Hockey puck" USB mouse is widely considered one of Apple's worst mistakes. Marking the switch from ADB, the colorful translucent mouse was a radical departure from its predecessors, down to a ball whose two-tone surface fluttered past the user's eyes as it spun under the mouse's translucent housing.
However stylish, the mouse's round shape is widely considered clumsy, due to its small size and tendency to rotate in use. This was a major cause for the success of the Griffin iMate
