In preparing my laptop for Seattle, I had to copy my SharpReader configuration, which lives in Documents and Settings\<username>\Application Data\SharpReader on my XP box. I did that many times before, however, this was the first time for Longhorn. Again, I was in for a surprise - first, it is now AppData, second, there are two renditions: Local and and Roaming.
I picked the correct one by chance (Roaming, although Administrator is a local account). Seems I have to learn a lot more about Longhorn than I previously thought.
For those of you also going to Seattle, you should read UF's The Lord of the Rings.