I don't know much about web 2.0, but as far as the name is concerned I feel that it really needs developing. Domains, such as yours, that form a word when combined with the extension should be developed for value, in my opinion of course. However, this also depends on the word too. A name like c.at would have more resale value than poltergei.st, but I think if you develop this name into a nice site then, of course, you will have value. Good like with your name.
-Rock