The Slingbox news hasn't stopped just because Dish made its big splash. An update to the Slingbox 500 at first, and the 350 later this year, adds a local My Media sync component that lets Android or iOS users offload photos or videos to a USB drive attached to the Slingbox -- they just have to stream their content instead of chewing up their mobile device storage. Both Slingbox 350 and 500 owners are also promised the new Slingbox Companion app you see above. As long as they're toting at least an iPad 2, they can find sho