Does anyone have any data on average temps for the MBA models of the last three iterations? I have a 13" and 11" 2010 MBA, and they seldom (if ever) get warm on the bottom. I normally just do modest use - web browsing, e-mail, word processor, etc. However, I just picked up a 2011 11" MBA (base model) at Best Buy (a steal at $740). I've noticed that under the same use, the base of the MBA gets noticeably warm. The CPU temps ton't seem to be all that different measuring with Temperature Monitor, but the heat is a bit uncomfortable working with the MBA on my lap. Reminds me of the old (2008-2010) MBAs. Anyone have the same experience? Is the difference in case design and/or the C2D vs. I5 cpus? Could it have to do with the integrated graphics on the I5 vs. the separate gnu on the 2010 MBA? Thanks!