Hi, My friend is new to Mac after 20 years with PC. He wanted to know why Apple can't/won't put in a 2.3ghz chip in the Macbook air. Is it because Apple wants to stratify their lineup or is it because of chip size in such a compact machine? I thought it was because the chip would be too big, use too much power and generate too much heat in such a small machine. I think it's a matter of time before they put it in. Whaddaya you say?