The honeycomb update will arrive soon. Access to the android app store should open many possibilities for GTV. With the purchase of motorola, and other rumors floating around, the writings of the death of GTV may have been greatly exaggerated.
I agree that GTV at its current state is rather rough around the edges. However it does have potential. I agree that having sling capabilities is a natural fit for GTV. I suggested it on their forum. Some on the forum have mentioned that they have already received one of the updates. I haven't gotten it yet.