Google seeded an Android 4.1 Jelly Bean preview to a number of Galaxy Nexus developer handsets during its Google I/O 2012 event yesterday, and less than 24 hours later, that ROM has now been leaked and is making its way around the web.

Thanks to RootzWiki developer “jdkoreclipse,” the working ROM can now be downloaded and installed on both GSM and CDMA Galaxy Nexus handsets that have been rooted. Although it was initially designed for GSM handsets, according to The Verge, the software also works on those connected to Verizon.

Based on early feedback, there appears to be no major issues with this particular release, but as is always the case with preview software, unwanted things can happen. There’s always a change the install won’t work for you, or that certain features won’t work on your handset, or that your favorite apps won’t run under this release — which is why RootzWiki provides this disclaimer:

This is not the official and final Jellybean edition; this is based on a nandroid backup of the GSM preview build that was rolled out at Google I/O. There may be bugs, crashes, freezes, or other issues. The butter may leak out. Install at your own risk, and make sure to enjoy yourself when you do.

If your Galaxy Nexus isn’t your main handset, however, and you’re feeling brave, you can download the ROM directly from RootzWiki now. Again, you will need to ensure your device is rooted before attempting the install, and you’ll want to make sure it’s backed up to your computer.

If you decide to install Jelly Bean on your Galaxy Nexus, let us know how it goes.

[via The Verge]