There's a meta keywords entry but no content. They're not that important nowadays, but you might as well fill it in.

You could do with a bookmarklet to make generating links easier.

Perhaps you could add a feature to allow URLs to be prefixed by http://hapylink.com/ to then change them into the final link. For example: http://hapylink.com/http://www.foxnews.com/ would return a page with the resulting Hapylink. Diggbar does it like this and makes it so easy to use.

Could you make the resulting links /slightly/ shorter (optionally, perhaps)? I'd like to use this on Twitter but Twitter would shorten (or at least truncate) these URLs again as they're a bit long, I think.

A logo would be cool.