Jailbreaking Different iOS Versions

Here is a list that gives the programs that is best for jailbreaking different iOS versions on the iPhone 3GS and iPhone 4 using either Windows or Mac.

Which program you use to Jailbreak your iPhone depending what version of iOS is installed on your iPhone. Here are the different programs you would use to jailbreak your 3GS or 4 iPhone.

4.3, 4.3.1, 4.3.2, 4.3.3 — jailbreakme
4.2.1 — greenpois0n RC6.1
4.0, 4.0.1, 4.0.2, 4.1 — limera1n
3.1, 3.1.2, 3.1.3 — Spirit