Technology is by nature overhyped, so it follows that quite often some of that new technology -- be it a service, a gadget, or a site -- fails to live up to the promise. Every year brings some tech hits and some tech misses, and 2008 was no exception. We've compiled a list of the top 12 flops in the tech world. Some are old favorites that somehow fell from previous heights, while others burned bright for, like, a second, before crashing and burning in user disappointment and lackluster sales. Take a look.