Slingbox definitely worked better with my 6700 than on the 6800 but its still usable on the 6800. The issues I see on the 6800 are a minor sync issue between audio and video (not too big of a concern for me since I use it mainly to watch live sports) but would still like that problem corrected. Also, whenever I put the slingplayer in fullscreen mode, the video gets jerky and I need to revert back to the windowed mode to get smooth video (windowed mode video is perfect, crisp and clear, getting 600+kbps/30fps) . Other people on this forum have said full-screen works fine for them so maybe its just something on my 6800 that is causing it. Bottom line though is that slingbox works sufficiently on the 6800 to the point where its definitely more than usable, just not quite as well as on the 6700 (way better than SprintTV IMO).