Now that we know Barack Obama will most likely have to say goodbye to his BlackBerry [1] due to strict security laws, I can't help but wonder what his back-up gadget will be. Doesn't the saying go, that to get rid of a habit, you have to replace it with something else? If this is the case, Obama will need to replace his BlackBerry-addiction with a new gadget obsession. I'm sure he'll fill the White House with all of his favorite tech toys [2], but what will he use when he's out-and-about? Check out all of the options below.