Here is the thing Nimble is not giving you DISH service and hooking it up to a Slingbox. They have their own software which pulls the DISH channels from its own internal headend. So how many DISH accounts are feeding the service so it can run? Someone told me that they used the service and one of the things they liked about it was they have recorded 9 shows at the same time with no problem.
I don't think DISH would have a problem if Nimble was giving one receiver per account to watch and control via Slingbox, but that's not what is happening here. In the back room they might have 100 receivers each tuned to a dedicated station... but out of those 100 receivers how many thousands of customers are watching the same thing at the same time?
If NimbleTV gets away with this then really ANYONE can think they can resell their favorite channel which they pay for on DISH (Or DIRECTV.. cable etc.) and put them online for people to watch and charge them a subscription fee.
What NimbleTV is doing is in direct violation of the DISH User Agreement. And I do feel that DISH cutting them off was the proper thing to do.