Big thanks to pal Bryan for confirming that the games not only run, but they look pretty good!
My new carousel menu
A game of Poker Patience
My other question was about how keyboard input is handled. My games are pretty mouse-centric, save for logging in at the beginning. I assume that there's a passable way to enter keys, because Bryan appears to be logged in to Poker Patience.
I'm still wondering about performance. I'll have to track down a Wii and try 'em myself.
I also wonder if this is gonna usher in a new era of Flash games for the Wii. I'll bet a Wiimote-friendly version of Four Second Frenzy would be loads of fun.
Of course, if such a thing did get popular, it explains why console-browsers necessarily suck. If you could just go to a console-friendly game-portal that plays loads of great little games for free or almost-free, a lot of people wouldn't feel the pull to buy boxed games at the store for $60 a pop.