I think the problem with doing the game via WiiWare is space constraints. Unless Nintendo decides to release an HDD attachment or allow HDD USB support, I don't see a game as large as Aquaria really fitting on that 512MB of flash memory, and even if it does, it'd take up the vast majority of it. If you guys wanted to go the Wii route, I think going with a disc release would be the best option. You could probably secure a deal with a smaller publisher like GameCock or O3 Entertainment quite easily, especially if all the work you needed to do was port the game over to the system.