Last year, in partnership with An Event Apart, Mix Online debuted the 10K Apart contest. The challenge was simple: build the best application you can with no more than 10K of code. The contest was a smash hit, reaping 367 entries in less than a month and 11K (sorry) tweets in less than a year. This year’s contest ups the ante with more than a nod to Ethan Marcotte’s Responsive Web Design. Without further ado, say hello to 10K Apart: The Responsive Edition.