Wiiflow boots first to a "Home" coverflow of consoles, nand, wii menu, Vanilla Coverflow (wii games) Homebrew. perhaps Media?
I agree.
And the plugins should use an external file allowing any number of plugins to be used, as long as those programs support parameter passing of a file. If they don't then the code should be added and submit to the program's developer.
Not saying it will be done, but some artists making covers would be a start:
Wii Games (main coverflow)
Wii Channels (includes NAND mode)
Homebrew
Gamecube (DML)
SNES (the current forwarder cover could be used)
Genesis (and a Megadrive, so people can choose)
the other gensPlusGx modes
Scumm (the current forwarder cover could be used)
etc