What about GoogleDocs? ;-)
Since yesterday I am not able to login to my OL workspace using FF2. The site just hangs. Using IE7 it works. Hm ...
I also recognized that the "Edit" button is not visible if read-only displaying an office document (e.g. Word, Excel) when using FF2. But the button is visible and works for IE7. Maybe there are technical reasons why OL has different behavior on other browsers than IE...
I am using GoogleDocs + Office Live. There are advantages and disadvantages on both sides. (e.g. I am using my Pocket PC to access GoogleDocs Mobile)
Since OL is still in beta I am sure (I hope!!) that OL will be improved ;-)
Programming is a kind of art but not all programmers are artists.