Now with adobe flashbuilder you can make iphone apps through windows http://www.adobe.com/devnet/air/articles/packaging-air-apps-ios.html it would all be coded in actionscript just like flash however looks pretty much alike. Personally I have never used it, i own a mac, but my school does cheers
Also I know you can put apps from this builder right into the app store just like the OS X process
You cant put it directly on a thumbdrive because OS X boots differently, you would need to install a new boot loader on you computer, but it can be done, look up Hackintosh
Finally , you do not need the magic touch pad, it is not possible to do multitouch while running on the simulator via OS X, you must put the app on your phone to test multitouch
