I know a lot of people have been looking for for a new working ROMs repo. Well today you are in luck, but please do remember to read my disclaimer before doing anything.
And now here is the repo: cydia.xsellize.com. Now just do a search for what you are looking for. For example in search on cydia type in “GBA ROMs” and you should see several ROM packs.
And that is my little treat today. So hopefully you can all have SNES, GBA, NES and PSX ROMs on your iPhone/iPod Touch using this repo/source!