You can arrange the channels in any order you want. Just hold down A + B while holding your cursor over a channel and you can drag it.
Also, the only way you can max out the current number of channels, or so I hear, is if you download all NES games. Unless Nintendo comes out with a Wii storage solution, the current number is just fine.
Edit: What do you mean by putting your games in "folders"?
"'Casual games' are something the 'Game Industry' invented to explain away the Wii success instead of actually listening or looking at what Nintendo did. There is no 'casual strategy' from Nintendo. 'Accessible strategy', yes, but ‘casual gamers’ is just the 'Game Industry''s polite way of saying what they feel: 'retarded gamers'."
-Sean Malstrom







