SEGA finally made Sonic the Hedgehog 4: Episode II official with a teaser trailer, but the first video makes no mention of any Nintendo formats.

The teaser's closing screen mentions the following formats:

PS3 (i.e. PlayStation Network
Xbox 360 (i.e. Xbox Live)
Android Market
Windows Phone
App Store.

Of course that doesn't mean we definitely won't see the game on WiiWare or the 3DS eShop — or hey, even on Wii U's digital storefront — but not seeing Nintendo formats confirmed right off the bat has us a little edgy.