BlackBerry 7280

Remember how we told you how easy it is to kill BlackBerrys via email, causing them to hard reset? Well, turns out that was a buffer-overflow issue in the 3.7 version of their operating software, and was actually fixed right proper in 3.8. So if you don't want your nerdy prank-playing coworkers constantly resetting your BlackBerry (what, they're just trying to mess with you!), you might want to upgrade post-haste.

The CDM-8940, Audiovox's first EV-DO cellphone