CamelBak, makers of all thing CamelBaky, have teamed up with Skullcandy for some serious backpack convergence with the M.U.L.E. SC10. The hydration bladder packs your liquid of choice, while Skullcandy pitched in with some iPod and phone controls. Simply plug your gadgets into a secret stash, and buttons built into the strap let you navigate your tracks and take calls. The neatest part, of course, is the built-in speaker system–so you don’t have to actually listen to nature the next time you go camping. I tried an early prototype of this thing while hanging with some guys I know at CamelBak a few months ago, and it seemed pretty neat. It should hit shelves at bike and camping shops in spring of ’07. No word on the exact price yet, but you can bet it’ll be more than your JanSport.