No plans have been announced yet, but the eagle-eyed mods over at SlingCommunity just noticed an interesting patent application from Sling detailing different ways to insert ads into streaming content. The filing describes a scenario in which the viewer would be watching a baseball game on a SlingBox, which would somehow determine which batter was at the plate and then selects an appropriate ad to run -- say, for a sports memorabilia store. Other ad-delivery methods described in the patent include prerolling ads before the stream begins, adding ads when
