I recently had my iPhone 4 replaced due to a faulty home button. It was periodically not registering presses. I've read countless posts from owners with the same issue. Do you think this is a problem with the design, materials or assembly? Mine was an original iPhone and wondering if this replacement is likely to fare any better? Guess only time will tell. Perhaps they've corrected the problem in recently manufactured phones. I've had an original iPhone and a 3G - never had a problem with the home button. Has anyone had this issue with a newly purchased phone....purchased in the last 3 months or so?