Magic Calculator, now on the App store

Say hello to my first iPad app, made with @LFabien. It's just a calculator, but I think you'll like it. http://itunes.apple.com/us/app/magic-calculator/id449485260?mt=8

Feel free to share any feedback. I'd like to improve the way the button is displayed when it's been pushed, so if you have any ideas, I'll be more than happy know them.