You will find that both platforms have their definite advantages, however you will be able to get the most help probably from the windows mobile/visual studio combination. This is largely because there are more . Net developers vs. objective-c and the amount of training material for visual stuido/windows mobile simply dwarfs that of objective-c.
If I were you based on your question, I would pursue windows mobile.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.