During a photo shoot in the river I forgot I had my iphone in my shorts pocket. While shooting a water level perspective I realized I had my phone in my shorts pocket that was underwater for about 5 minutes. I dried it out, got most of it working. One of the items that didn't work was the rear camera auto focus. After searching the web on solutions I found ifixit.com and decided to replace the camera using their instructions.
Once I got the parts it was a quick process to replace the rear camera. I pre-read the instructions so I knew what the steps would be. The hardest part was getting the battery out with all the glue they use to keep it in. The plastic opening tools worked great for that. Surprised how small the screws really were so it was important to keep them in order, I used a white sheet of paper and wrote on it where the screws came from which was an over kill, didn't really need to do that. All and all a pretty easy process and it was successsful - my rear camera is now working, I can live with the other items not working until the iPhone 5 comes out.
The tools from ifixit.com work great. The plastic opening tools really came in handy to get the battery out and to remove the connectors for the battery and camera. The instructions were right on so follow them and you should have any problems.