I am using bitmap images (jpg) which I have to rotate (at odd angles). In the simulator (also at zoom setting which I believe corresponds to actual device size) there are jagged edges. Is this been taken care off on device (I target iPhone4 and images are in retina display size) or does one have to do something about that and, if so, what to do (the antialias setting in config is according to what I read in documentation not applicable to this)? Is there any WYSIWYG setting that shows rendering in simulator how it will look like on device where number and size of display pixels somehow match? Maybe a stupid question...