21. Palm LifeDrive (2005-2007)

The LifeDrive's official name was the LifeDrive Mobile Manager because it was supposed to be a mini computer that could be used for both business and fun. It had both Bluetooth and Wi-Fi and at the time, a whopping 4GB of storage space (it was hard drive, however, not flash memory). The LifeDrive wasn't bad, but at a moment when consumers were shifting to smartphone devices with built-in cellular connections, producing a very expensive PDA on steroids was the wrong move.