Firmware and Tools

iPhon3N3wz

Status: As of right now all the iPhone, 3g, and 3gs can be jailbroken and unlock. The most resent version is 3.0.1 which can be easily jailbroken and unlock.

iPhone
v1.0.0 - Modem FW 03.11.02_G
v1.0.1 - Modem FW 03.12.08_G
v1.0.2 - Modem FW 03.14.08_G
v1.1.1 - Modem FW 04.01.13_G
v1.1.2 - Modem FW 04.02.13_G
v1.1.3 - Modem FW 04.03.13_G
v1.1.4 - Modem FW 04.04.05_G
v2.0.0 - Modem FW 04.05.04_G
v2.0.1 - Modem FW 04.05.04_G
v2.0.2 - Modem FW 04.05.04_G
v2.1.0 - Modem FW 04.05.04_G
v2.2.0 - Modem FW 04.05.04_G
v2.2.1 - Modem FW 04.05.04_G
v3.0.0 - Modem FW 04.05.04_G
v3.0.1 - Modem FW 04.05.04_G

iPhone 3g
v2.0.0 - Modem FW 01.45.00
v2.0.1 - Modem FW 01.48.02
v2.0.2 - Modem FW 02.08.01
v2.1.0 - Modem FW 02.11.07
v2.2.0 - Modem FW 02.28.00
v2.2.1 - Modem FW 02.30.03
v3.0.0 - Modem FW 04.26.08
v3.0.1 - Modem FW 04.26.08

iPhone 3gs
v3.0.0 - Modem FW 04.26.08
v3.0.1 - Modem FW 04.26.08

The latest version of redsn0w(windows)
Redsn0w 0.8

Latest PwnageTool(Mac)
PwnageTool 3.0.1


Source: iCommunity