Hi, just bought it and downloaded.<p>After installation it wouldn't synchronize folders, being on Windoze closing and starting again your app did the trick.<p>The people interested in security solutions would happily pay much more than $1 I would think.
Interesting. What crypto functions do you use? Openssl?<p>Also in your "how it works" s/loosing/losing.<p>Keep in mind that you are breaking dedup, which is likely to make dropbox sad. Probably not sad enough for them to do anything useful though.
For those wanting to solve the problem another way, see: <a href="http://skeptu.com/secure-alternatives-to-dropbox" rel="nofollow">http://skeptu.com/secure-alternatives-to-dropbox</a>
For those looking for alternatives, I have been using Boxcryptor and it has been excellent. It includes a few more options (e.g. file name obfuscation).