I have noticed since 2.2 that photos look fuzzy or washed out when first viewed (full view) in the photos app. However, if you zoom in even the slightest bit, the photo sharpens up considerably and looks more vibrant. I think it is a problem with the algorithm they are using to condense the photo for full view.
Mine has been this way for a while now. Daytime photos are just fine but any nighttime photos are blurry, white/blue or just plain bad. I've tried a steady hand, focus box green, touch screen to focus, etc. No go. Any thoughts?