I used to really like the Tempest game for that, and the card game wasn't too bad.
I wanted to get Monopoly and Mahjong for it and some other games but by then they stopped selling them on the iTunes store. There was a pirate torrent going around but the apps were encrypted and no way to install them on another device. Finally they just stopped making them.
Apps like that... gone forever.
iOS 3.0 apps that got the App store going... gone forever. I still remember playing the unofficial lights off game, beat all 150 levels. (Wrote a program to solve them)
Unless someone wants to make an emulator for the original iPhone you could do it by downloading the ROMs just like old Apple emulators, but how would you approve the apps without a 3.0 app store around?
In theory someone could crack Apple's old signing keys and have a local "FakeAppStore" program that validates them and allows installation on the emulator.
The "cease and desist" letter would probably arrive less that one minute after putting such project online.