We don't, compared to the Xbox Classic you can essentially just dump and install Wii content, no installer has to be made to resign the content.
Most of it has been dumped and is out there on Warez sites and stuff. Maybe for Wii DLC that is something we can look in to at some point, however theirs a lot of emulated games on the Wii shop that Nintendo sell on other platforms, so that's probably not something we could ever justify hosting.
The Xbox Classic project is pretty unique in that only a few people have the knowledge to actually create an installer to resign Xbox content, then actually went and obtained the majority of it.