Newsletter Signup form - iPhone

As I've recently started my own e-mail newsletter (covering UX & design), I also wanted to twist the default Mailchimp registration form design into something more tasty. It's in the making – until then I have to cope with the default look ;-)
http://eriklindahl.us1.list-manage.com/subscribe?u=28fed88276ed2f7eee9368609&id=9ace2fe253