“redsn0w is currently in beta as it relies on the user running it from the command line, but this new redsn0w functionality is being added into our GUI applications.” - iphone-dev

I took a gander, and what do ya know, redsn0w beta is live for Linux, Windows, and Mac!  I am currently torrenting the files - when they’re done, I’ll upload them and post the links here.  Let us know your results:  success, fail, or what have you.

theiphoneproject mirrors

redsn0w for Windows is here or here SHA1 sum - ee20e5879bcc00b9e7ce29da85fd168eec479d1b 4002959182759d3d18482671e62d7a3799670c5a

* the iphone-dev team accidentally released the windows version with a few linux binaries, so they had to repack and rerelease.  You’ll need to redownload.

redsn0w for Mac OS X is here or here SHA1 sum - 04edb5465526afc00508d18125094725a76dd91c

redsn0w for Linux is here or here SHA1 sum - d775291a7624c44d3b46fc5ff8595d18b05c3de9