Few the past few months I have been brushing up on Objective C code and have been preparing to submit an app into the app store. However if your like me you've probably got a few ideas and its easy to get confused and waste time trying conceptualise them inside Photoshop. So I decided to go the old fashioned way and get my ideas onto paper. Just print a couple of copies of the below image onto A4 paper and off you go! Great for scribbling those killer app ideas that you have. 
Click on the image or just Download It
Hope you find it useful!