At CES 2009, the surprise unveiling of the Palm Pre was a Big Deal. It looked like a legit iPhone challenger and the possible resurgence of Palm, once the final word in personal data assistants. But when the Pre finally launched on Sprint, it did little to gain traction in the smartphone market, much less make a dent in the iPhone. Flash-forward to CES 2010. Palm is back, this time with the next edition of the Pre, called the Pre Plus.