I injected Super Smash Bros Brawl into Mario Galaxy from eshop and It worked very well. I've already injected Smash Bros Brawl, Wii Sports and Wii Sports resort and all worked perfectly.
I downloaded XP on dialup when it came out. Overnights for like a week. cuz I couldn't tie up the phone line during the day. It was so awesome and worked so great going from ME to XP.