You can download blackra1n RC2 at blackra1n.com.. There is both a Windows and a Mac version of the jailbreak. Below is a complete list of new features for blackra1n RC2.

** Update — RC2 is out **
Fixed 3G issues
Tethered jailbreak for 3.1 OOTB ipt 8GB and new 3GSes
Fixed Icy issues
Both Windows and Mac
If you used RC1 with success, no need to rerun

OS v1 is a pack of 10 OS inspired wallpapers. This includes Mac, Windows and Linux wallpapers. There is also a random AT&T wallpaper in there as well. I have seen most of these before but, it’s an easy way to get them onto your iPhone or iPod Touch if you want them. Remember, when you install this wallpaper pack, the wallpapers are added to your stock Settings application under Wallpapers. You can get OS v1 via the MacCiti source.

Note: If you would like to manually delete some of the wallpapers once you install the pack, you can ssh into the Library/Wallpapers folder on your iPhone or iPod Touch and delete them from there.

ScreenShots

“redsn0w is an easy to use, multi-platform, multi-device jailbreaking and unlocking (iPhone 2G only) tool for the iPhone 2G (original iPhone), the iPhone 3G (but not the 3GS) and also the iPod touch (first and second generation). Currently it is available for Windows and Mac OS X (there are some issues using redsn0w with OS X PPC, please use an Intel Mac until we have this problem resolved).

REDSN0W PROVIDES SIMILAR FUNCTIONALITY TO QUICKPWN.

If you want to build custom firmware files with more flexibility it is suggested that you use ‘PwnageTool’ on Mac OS X.

1.GOLDEN RULE: If you are using a 3G iPhone with yellowsn0w and rely on yellowsn0w to obtain cellular service, then you should NOT use redsn0w right now. Ultrasn0w (the 3G carrier unlock) is not included with this release and therefore your baseband will be locked and unable to use an operator other than the official one it was bought for. UltraSn0w will be released via APT (cydia and icy) soon. If you have an original iPhone (1st generation) then 3.0 carrier unlock works with this redsn0w release.

2.Yellowsn0w in its current form will NOT work with the baseband version that is present in the 3.0 update, you will need Ultrasn0w, which will be released sometime soon, Ultrasn0w will work with all iPhone 3G models (but not 3GS), even ones that were previously unlockable, Ultrasn0w (when available) will be released via APT (this means you will be able to get it via Cydia or Icy).

3.Please read all parts of this post before downloading and using these tools.
4.Read items 1, 2 and 3 again and again.
5.At the bottom of this post are the bittorrent files for the latest version of redsn0w.
6.This app is suitable for the recent 3.0 release
7.redsn0w will NOT work for the iPhone 3GS.
8.redsn0w WILL work for Original iPhone (1st Generation), Original iPod touch, iPod touch 2G and the iPhone 3G (not the iPhone 3GS).

To use redsn0w simply upgrade the device in iTunes to firmware version 3.0 and run redsn0w to activate and jailbreak the device (and if you are using an original iPhone 2G, it will unlock it too!)”

You can download the app at the Google code link below and SSH it onto your iPhone. Pretty sure it only works on 1.1.4 and below based on the last time the code was edited. I tried it on my 3G and it wasn’t good…

code.google.com/p/mobilenuker/

You can see more about the app at the developer’s website here: steventroughtonsmith.blogspot.com

Via ZDNet Australia.