Although it's known more for pretty computers and applications celebrating infanticide than Internet know-how, Apple is rumored to snatch up Twitter, according to Valleywag. While the SF-based company turned down a $500 million offer in cash and stock from Facebook, whose most recent makeover was a disastrous aim at the Twitter set, Apple allegedly plans on ponying up $700 million for the micro-blogging site. According to Valleywag, "A source familiar with the thinking of Twitter's board says the company would be hard-pressed to refuse an all-cash offer in the range of $700 million. (Is Twitter really worth that? Since it's business is nothing but a fantasy at this point, any valuation, high or low, is a matter of make-believe.)"