[aeeeee]

I'm not sure how this is any different than a pastebin service over https. The data is encrypted in teh browser meaning that someone won't be able to snoop (if that's a concern for some reason) but there is nothing stopping the server admins from seeing your data as long as the server is storing the encrypted data and the decryption keys. Am I missing something?

[munin]

you are missing something, read their project page which states:

"The key is never transmitted to the server, which therefore cannot decrypt data."

but it does seem like the resulting queries could be stored in the servers logs, as the key needs to be part of the request? edit: no it doesn't, I needed to read more :) the key is the anchor part of the URL. neat!

[ctz]

The server doesn't store the decryption keys. However, the server does serve the crypto code which makes any perceived security boundary between the server and client bogus.

Cool trick though.