Unbound Jailbreak for iOS 4.2.1 released

Untethered jailbreak "greenpois0n" for the following devices (with firmware 4.2.1)

iPhone 3G
iPhone 3GS with any bootrom
iPhone 4
iPod Touch 2G
iPod Touch 3G
iPod Touch 4G
iPad

Important! Thanks to habrachelovek zobov for the link to the corrected version .
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While the site grenpois0n.com is - you can download the links from this post . Download better fixed version.
Installation Instructions .

UPD : So far, only versions for Mac OS X and Windows
UPD2 : Who writes “failed :(” as a result? - Put the jail file, for example in / Applications
and run through the terminal:
open /Applications/Greenpois0n.app/Contents/MacOS/greenpois0n
UPD3 : My loader does not find Cydia to boot. For those who are eager to poke around, here is one of the few literate links - the rest of them all go too smoothly.
UPD4 and the last one for the near future : Whoever loader is empty - you can really put Cydia through ultrasn0w 0.9.7b6 - checked, the untied Cydia jail became, though I had to reboot manually, because after ultrasn0w - the device hung on the screen with pineapples.