Well, according to Dish Network's own webpage, you won't be able to get TurboHD as a current customer.
DISH Network -- Tools
Am I the only one noticing they are planning on offering 1080p VOD?
I, too find it odd that they won't offer existing customers the chance to pay big bucks extra for a couple RSNs. Is it officially confirmed that grandfathered HD Absolute customers won't be getting RSNs? Perhaps that's why Dish is blocking us, to save us money. Of course with Dish, that is probably too optimistic.