Just to clear up what every person has rote on all of the sd card reviews.
As of 25th of March 2009, when you perform your wii system update, you will then be able to use EVERY SDHC Card upto 32gb.
I'm now going to order this for my wii and dsi. Should be plenty big enough!
Great card! working 100% fine with my Nikon D80. It is not super super fast... but it is quite fast than other 3rd party or low cost cards.
No issues taking pictures. No Errors.
You might need to upgrade your card reader. I am using direct cable from my camera to PC.