I think we are all on rumour overload...... and the MacRumor community is losing sleep over all these premature speculations, we have been shot with significant loads from the rumour mill. Significant iMac, Macbook Air, Macbook Pro and iphone updates, from what has been quite a flaccid period, I guess it has become a lot to swallow. I don't see why 4 inches is necessary, I found that the size never was an issue, 3.5 inches certainly does the job and pulls it of quite well. We will have to see what lays ahead but the next 3 months will be messy, with a lot of releases, bigger or smaller I can wait to get my hands on it all.