Not sure why some people are having problems but it works great on all photos on my iPhone 3GS including both in the camera roll and the photos syncd back from iTunes into separate folders. The only suggestion I have is to be able to click on the map section shown in google maps and have it open the map into normal map mode and see a pin placed where the photo location was. Then you can use the maps for whatever you need and know where the photo was located. Great app!!! Kind of sad that an app had to be created for this. Seems like something Apple should already have on the iPhone.
Recon_18 about Lab, v1.1