Thanks a lot Nintendo. You're pushing out an update to millions of people because maybe a thousand people are exploiting a hack. You couldn't tack on one other feature to make it worth our while?
it also lets you drag your own miis into your mii parade, which lets you store more than the 100 miis on your system... except you can only use the 100 not in the parade in games
samurai shodown was the only new vc game. i think there were some wiiware games but i'm too lazy to find out what they were.
One source said that if you have the homebrew mod done before this update you're in the clear. It's said to keep it from happening.