Filling a gap that's been there for a while, here are binaries of the latest pcsx2 beta for Linux, based of revision 1736 of SVN.

As with the Windows betas, this is not supported. If you have issues, make sure you have all the dependencies installed, which last looked like this:
gtk2, opengl, libbz2, libjpeg, glew-dev, libxxf86vm-dev, x11proto-xf86vidmodeautomake and autoconf (version >= 1.9) Nvidia Cg-Toolkit, libasound-dev, and joystick

I'm compiling with Glew 1.5.1, and I've seen issues before if you use a different Glew version then the one I compiled against. I also downgraded my copy of libjpeg to version 6 before compiling, because most distributions are not using 7.

I've included a binary of ZZogl at r166[1], as well as OnePad, GSnull, and PadNull. The latter three are all considered alpha quality, and the former is by Zeydlitz.

[1] There is a newer release or two, but they were released after I talked with Zeydlitz about including it, so I decided to stick to the release we'd talked about.

Keep in mind we do not offer any kind of official support for this. It's mainly for users who want to try the latest additions. But you can report bugs in the bug reporting forum.