Feedback needed: App lets you redirect yourname.isfound.at to your blog's URL

My co-founder and I have thrown up a fun little web app to test the waters for bigger projects. It would be great to get some feedback on what you do and don't like about it. Both on the concept and the implementation.

The idea is pretty simple: let people register for a really easy to remember URL ($FOO.isfound.at, get it?) that our service redirects to the actual website or blog. Sites are easer to visit if you can remember where they are, after all. It is by no means a technological breakthrough, but it is useful service nonetheless. What do you all think?