I have had my iPod Touch for almost 2 weeks now, and I have been very happy with it. In fact, my coworkers now ridicule me and call me fanboy, etc. Anyway, I have been using it mostly for web browsing and audio. I just put some video on it, and I've noticed some strange shimmery effects during dark scenes. it almost plays tricks with my eyes, causing me to adjust the angle I'm looking at it, etc. So, I went online and used some of those screen test sites. Sure enough, it is not rendering dark grays correctly. Anyway, I am about to call the Apple store I bought it from, but I want to see if there is any tips I should know before I do. Has anyone had to exchange their Touch, and if so, is it easy? Also, I actually live closer to a different Apple store (not the one I bought it at). Do you know if they service/exchange at different official Apple stores? Thanks.