One way to make an iPad app and have an iPhone app that does the same thing

Today I 'av mainly been wondering if I can keep my iPad app in step with my iPhone app without copying the code by hand.

Then I had a great idea! Why not use my favorite language Python to help. The idea is to make an iPad App called 'ipad app1' and make the interface and write the code. Then make a iPhone app called 'iphone app1' make the interface (identical to the ipad except smaller) but write no code. Then use this small script to keep the 2 projects in step.

I have tested it on a tiny project now for something bigger...