Sorry for the lack of updates. Joystiq & engadget hit the scene at NYC's Wii launch party (coverage continues throughout the next few days). At the after-party at my place, we were horrified to see how pathetic the selection of Virtual Console games were (Where the heck is my Gunstar Heroes? When do Mario RPG and Super Metroid come out?). I'm glad to pay my hard-earned dollar on retro games, but damn it--I can't do that if they're not being offered right now!
Interestingly, if I so chose to embrace the Dark Side, I could use [e]mulator, from homebrew developer "e". This application includes emulators for a wide variety of systems: Wonderswan, Lynx, PC Engine, Neo Geo Pocket, Game Gear, Game Boy, and Famicom (NES). If one is so inclined, they can visit the site, download the file, and use a program like WinRAR to extract the files. Don't worry, there's a very Engrish read-me that should theoretically walk you through the process.
Nintendo Game Boy 1st-gen
Sega Game Gear
Nintendo Entertainment System 1st-gen
NEC PC Engine 1st-gen