Check out this video to learn how to install the Super Nintendo, also known as SNES, on your iPod Touch 1G & 2G, as well as the iPhone, 3G, and 3GS.
Open up Cydia and search for and install the SNES emulator: snes4iphone
Go to this link for ROMs:
Now just follow the video!
Oh... and if you're working from home these days, be sure to check out Gadget Hacks' Working-From-Home Essentials.