PwnBoot
A work-in-progress jailbreak for limera1n devices on any iOS version (and potentially all checkm8 devices)!
Currently only supports the iPhone 3GS, however support for more devices is coming soon :)
Features
Verbose boots a custom SSH Ramdisk
Achieves a root shell over SSH
Verbose Boots and grants a root shell
Grants full access to the root filesystem over SSH
Allows you to recover any data from a locked 3GS
Pwn DFU on any Limera1n device (not only iPhone2,1)
Manually barebones jailbreak (fstab and Services.plist patch)
Credits
iBoot32 for creating PwnBoot
westbaer for irecovery
geohot for limera1n
planetbeing for xpwn
The team behind "puTTY" for plink