I can completely echo your concerns and I've made a little pictorial representation of what I can't do in Lion vs Snow Leopard (I'm now back in Snow Leopard). If someone can show me doing the same thing in Lion I'll consider going back, but until then.
OK here we have a pretty regular scenario for me - Internet open in my central Space, iTunes in the left, iPhoto in the right and my workspace in the top Space:
[url=http://img847.imageshack.us/img847/3750/screenshot20110721at121.jpg]Image[/URL]
In the top Space I'm working on a Word document. Now, the problem is, I'm also working on a Powerpoint Presentation, using Finder and also using a bunch of journal articles in PDF format:
[url=http://img97.imageshack.us/img97/3750/screenshot20110721at121.jpg]Image[/URL]
But that's not a problem with Exposé - I can quickly find navigate to what I want in two gestures (four finger swipe, click):
[url=http://img845.imageshack.us/img845/3750/screenshot20110721at121.jpg]Image[/URL]
If you can show me that on Lion I'll admit I'm wrong, and it's the greatest system ever - until you can show me how to do that without affecting my productivity, I'm not interested.
Lion can't even handle 6 safari windows and this is with Mission Control's version of App. Expose.
RVM84,
- off topic, but have you discovered Papers?
http://www.mekentosj.com/
It will make organizing, searching and reading your journal articles a lot easier.
Also, bookends is pretty good for Bibilographies and Datagraph is great for 2D graphs.