Yes, with the new Wii menu 4.0, there is an SD Card channel. Clicking this opens a 20 page menu of games loaded onto your SD card.
Is this a suitable solution? By no means.
What it is, is a step in the right direction.
First off, people like me will find it great that there’s 20 more pages to fill. I’ve filled the standard Wii pages with just VC games, with room still to spare. And they say it supports up to 32g SD cards. Awesome!
Now, the obvious problem is that with 32g of space, 20 pages wil be nowhere near enough. That can be topped out without even filling a 2 gig card. The next issue is that how it actually works, is that it copies the game to the Wii’s system storage, then runs it from there. Why not run it right from the card?
All in all, it is by no means a perfect, or even well thought out solution, but it is a definite step in the right direction. With some extra work, this could easily turn into the perfect solution for Wii storage. Let’s just hope they don’t drop the ball.