As you may know, Apple doesn't allow creation of iOS applications just like that. Especially under Windows. It's somehow a complex process, which requires several steps in a specific order. However it is still possible and you can do that without Mac.
I really don't like FlashBuilder. Mainly because I'm losing a lot of time just to setup the project. Usually when I receive the files I need around 10 hours just to compile successfully. The reasons for those problems are different Flex SDK, different directories' tree, wrong paths, missing libraries or fonts. Today I encounter a brand new type of problem.