this site will answer your questions on non residents.
http://www.iowadnr.com/wildlife/pdfs/07nrdeer.pdf they have a quota for non resident deer hunting license. i have heard that they want to raise the quota by 3000 tags for 2008. but the 3000 additional tags will be for antlers less deer if i heard it right. right now they have 6000 any sex tags and 3500 antlers less tags and they want to go to 6500 antlers less tags if i read it right. i hope this helps. i also know that their is allot of opposition to the raising the quota here in Iowa. i could care less as long as they don't trespass on my ground or any other ground they don't have permission for. when they first allowed non resident deer hunting there was allot of opposition then to but it passed so i cant see the extra tags not getting approved. up date i checked into it and it 3000 more any sex tags for the 2008 deer season. so there will be 9000 any sex tags instead of 6000 if they pass it. and the 3500 anterless tags will stay the same .