invertr is an iPhone/iPod touch web app which allows you to turn your written text upside down, send it to your friends and colleagues and enjoy the confused looks on their faces!
Using invertr is simple: Just load the web app, tap the top text field and start writing. When you’re finished your writing is rotated. Now just choose whether to send the rotated text to your iPhone’s/iPod touch’s mail application. You can also send the text to Twitter.com or the popular native Twitter clients Tweetie and Twitterrific available on the iPhone App Store and create an amusing, rotated tweet.
Your text is automatically saved to a cookie on your device for your convenience and later reuse.
To use invertr point your browser to: