I recently downloaded the latest elive beta. It never came across my mind that it wasn't 64bit, why wouldn't it be?...it's 2015 (as of this post). My 64bit app couldn't install, and I then I found out the kernel is only 32bit.
As of this post, it looks like they're still working on their latest 32bit beta, so I'm not sure how soon they're going to introduce a 64bit version.