PbC, if I can remember it when I get home tonight, I'll dig up my serial number and PM you an invite (or however they let me send it out). If I forget, it's not because I hate you, I just tend to do a brain dump when I leave work.
I can't wait to try out 2.0. I've been using Lightroom 1.3 on my poor, beleaguered Core Solo Mac Mini for a while now and love it. I can't yet afford Photoshop, so I can't really compare speed between the two. I can say that Lightroom's been snappy enough for me on a low-end Mac, though.