Has anyone had experience using Dropbox ?

[tatster]

Hi all,

On a few of the websites I visit regularly there has been quite a bit of buzz about a new app/service called Dropbox (http://www.getdropbox.com). It is a file backup/syncing/sharing web application.
From what I have seen, it seems to have a lot of potential and the possibilities to keep files in sync between home machines, and machines at the church are very interesting. There is a video showing it in use on their site.

However, at the moment it is in a private beta phase and therefore is invite only. In a slightly cheeky way - if anyone has a spare invite lying around, I would be really interested in evaluating this service.

Tatster.