There's this new iPhone program called "Crackulous" that allows jail-broken iPhones to download and use applications from the iPhone Apps Store for free.
Sounds good, right? The issue is that it's probably illegal and it's certainly not fair to the developers to steal their programs.
Plus, a lot of apps contact Apple automatically, so you'd risk getting kicked from your iPhone program and locked out. But hey, whatever. It's your life. Go be a pirate; see if I care. Strap on a wooden leg and an eye patch while you're at it and don't forget your parrot, matey.