Here is some additional information about features (or lack thereof) in LR 2.0. This is a quote from Dan Tull, LR QE on the LR 2 Beta forum:
"I can give you one other reason that there's no archival/backup features in this version. The conversion from the old (and largely incoherent) shoots model that predated the folders panel was largely cosmetic in version 1 and the subsequent dot releases. The machinery under the hood needed some significant rework. The bad news is that most of these changes are not readily apparent*. The good news is, the new foundation is a far better one on which to build asset management features (like archive and backup) in the future. <snip>
I don't care about the underlying mechanisms if the part I use doesn't change. If the changes make for better features in the future, then I'll be happy to pay for them in the future.
The local adjustments feature is worth quite a bit to me; I would upgrade for that alone. Dual screens is also good.
I shoot four digital cameras -- an M8, a Nikon D300 and D3, and a Leica P&S. I may lack sensitivity to the color vibrations, but I have not yet found anything that I can do in the Nikon software that I can't get out of Photoshop/Lightroom pretty quickly. May be different for batch processing, which I don't do. On the whole, I find LR/PS conversions to be pretty good.
More scaling/sizing facilities in preparing a jpg for web use, or just for e-mailing it, would also be nice.
I have four Apples (two iMacs, a Mac Pro and a MacBook Pro) and honest to god, if I could only coordinate a multi-unit breakdown so I could justify starting over, I'd go back to PC. Not to start off on a rant, or anything, but Apple is a little fascist state and anything the glorious leader doesn't want, you don't get. The 30-inch cinema screen *is* excellent -- using anything else is like looking through the viewfinder on a Canon Rebel. However, I bought one of the 20-something-inch cinema screens (22? 23?) two or three years back (the lucite one), and I find you can't even plug them into the new Mac Pro without a $100 converter that's about the size of a loaf of bread. Apple obsoleted (if that's a verb) a very expensive display that only a couple of years ago was state-of-the-art. They've pulled other stuff like that over the years, and seriously, if I get to the point where everything needs an upgrade, I may do a big favor to Michael Dell.
Don't even get me started about the number of USB ports on even high-end Macs...