Hello my friends.....I have seen many questions regarding the best use of the new exporters options. As I also suffered a lot from it, with the help of Andos and DistantJ I can make it possible. So, I'll try to help if you are passing for the same problem of how size use, the export mode and how can you reorganize the position of the objects that need to be on the right side.
In this little MFA I will be considering the landscape mode (but to portait mode you just need to change the condition).
Well, the best way that I found is Build the Application on 960x640 and all frames in 1136x640.
The export option that I used it was: FIT INSIDE AND ADJUST WINDOW SIZE.
If you need to put objects on the right side of you frame you just need to add one event.
In the MFA file I was considering that I want my button 20px distance of the right side.
PS: Make sure that you are using the latest beta vesion of the iOS Exporter.
PS2: This exporter option will be perfect ONLY on iPhone's and iPod's....if you try to use in iPad you will see you app in top left corner and a big white space on bottom of it. So, I think you will need to make another version to Ipad using other aspect ratio or just use you actually app exporting in FIT INSIDE BLACK BARS mode, then you will have a iPad version with little black bars on top and bottom.
PS3: If you want use the portait mode with objects on bottom of frame you just need to change the event using Y BOTTOM FRAME = 960 then SET Y POS OF OBJECT.
Well, the MFA it's very simple. Enjoy, wait that it can help a lot of friends.
BEST REGARDS AND SORRY TO MY BAD ENGLISH.