Feel like hacking? Here is a small problem that needs a solution.

http://pushudo.com is trying to solve the specific case of emailing links to people.

disclaimer: I do some part-time work for them.

Everyone's look at the sites in that video aren't they?

But this does seem like a problem that would already be solved. And yet I don't think it is...

People don't remember email addresses, and they don't like typing them in.

The idea is to forward your tweet via email to people who only have email adress not a twitter account or facebook or so.

So the app needs to do a quick check and see if you have an addressbook file or at least allow you to upload one.