Snippety Snip is a simple application that allows you to shorten a long url by simple typing it or pasting it in the box. Just tap Snip and your done!

Snippety Snip uses three major shortening services to shorten your url, is.gd / tinyurl and tr.im

Snippety Snip also integrates with other applications on your iPhone, you can open the new url in Safari, begin a new mail message with your new url. You can even copy or cut the url and paste it into any other application on your iPhone.

http://appshopper.com/utilities/snippety-snip