It's not a new concept, but the stylus that doubles as a pen may be making a comeback. It's really the solution for needing a pen when all you've got on you is your smartphone. And no matter how high-tech-dependent we think we are, inevitably the need arises to jot something down on the back of an ATM receipt or in someone else's notebook. Palm's Treo and Centro both have stylus-pens
available in three packs-because even though one fits snuggly in where the original stylus goes, as a pen it's no doubt more likely to get lost.