How do I rotate an iPhone photo on my iPhone without losing EXIF data? I have iOS 4.3.3. 

Are there any apps or methods that allow simple rotating of an iPhone photo (taken where the level sensor picked the wrong orientation), without losing the EXIF information?  

Using ExifWizard app, it seems Adobe PS Express and PerfectPhoto both lose the original exif data upon rotate and save. 

I know iOS 5 has a built in rotate feature but I'm not running iOS 5 here.
Photogene2 is a handy iOS photo editor and has an EXIF viewer in app. Currently $0.99