I have the MBA mid-2012 (i7/8GB/256) and all I can say is that I have been deeply disappointed with fan noise. Thought I got a jet as well.
I have had it serviced at an Apple Store to check if something was wrong, but they say it runs normal.
In the case the new Haswell-generation runs cooler I'm ready to sell off my current MBA with a loss, but first I have the following question for new 2012 MBA users:
- How about fan noise when you start running flash/YouTube-videos?
- How is it when running games (even simple games)?
And to all of you. Do you expect there to be a temperature difference between the i5 and the i7?
Best wishes,