Jens and Notch havejustannounced that the 1.8 pre-release .jar is available for public testing. It is important to remember that this is NOT The final release of 1.8, and is still extremely buggy. If you find any bugs, or need support, please join the #minecraft channel on irc.esper.net using your favorite IRC client!
NOTICE: This version will only work if you've paid for Minecraft, all the more reason to step up!
OMG wtf? I like either cant or my computer wont download <_< Grrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr
I Going to wait for the update thought