I don't know, but I love Consolas so much that I'd be hard pressed to try anything else. I can set a small font size, lean back in my chair and still read it clearly without squinting.
I think Anonymous Pro looks a lot like Consolas, only a little less bold. Also, a little more "packed" - I assume this is due to decreased font height, which for me works great sometimes but it can be cumbersome to my eyes.
I use Anonymous and I'm trying out Anonymous Pro now but Consolas is a fantastic font as well. Especially on windows, as it has great cleartype hinting. It also has a two-storey "a" and the slashed 0 going the correct way.
