According to a BestBuy manager, there were 2 Rev A SKUs for MBA shipments they received, one in February the second in July. It's unfortunate you got the first batch and I can't comment on its performance.
But looking at manufacturing time, the Rev A refurbs being sold today are from the second batch which for everyone here seems to have solved overheating / video playback issues.
Bottomline, it's a finely tuned notebook not netbook.
I agree, the MBA revA is a "glorified" Netbook. Most Netbooks have tiny displays. But from a power standpoint, it's hard to get past a PATA drive which is a thing of well, NETBOOKS. The thing is you can do the same things on the MBA revA as a Netbook. Yes, the display on the MBA is great, but from a speed/power standpoint, it's a Netbook.
Look at revB MBA, SATA-II NOT PATA. REAL Penryn 45 NM Chip (Same as MBP), and on the Penryn is 6MB L2 Cache, an Nvidia GPU with amazing graphics capabilities to power a 30" Apple Cinema Display. The two are totally different. I understand all of the people buying MBA revA want validation, and if you are using the MBA revA as a Netbook or secondary computer, it will work fine... But the revB MBA is a real high-powered MACBOOK! The differences are huge. Have you looked at the benchmarking of the revA MBA? Now, have you looked at the revB MBA? I have used both, and I am not making this stuff up. Look at the facts.
I know that Apple has made changes to QuickTime and other things trying to make everything easier for the MBA revA, but that is not making the MBA a better more powerful computer, it is simply reducing the needs to show a video. Look back to the time of the MBA revA and all of the bad articles about it. People were complaining because they couldn't even play a simple video on it without it overheating and would just freeze.
So, the support is a lot better for the MBA revA, but it is not a fully capable MacBook. It's an underpowered computer, or a really nice Netbook.
I wish I could go buy a MBA revA for $999 and have it do everything my MacBook can, but it CANNOT. To have the power you have to buy a MBA revB for $1799. That is the truth. I simply think people should quit masking the limitations of the MBA revA, just because they got a great deal on it compared to the price last year. It's NOT a great deal at $999. I am sorry, but it's not. At $599, it would be a good deal to get the power of a Netbook, but run OS X and use it for email, word processing, and Internet browsing. For $400, you can buy a nice 9" Netbook and such, I agree the MBA revA is worth more than $400, but at $999 for what you get, it's still overpriced.
I think in all the MBA is the coolest computer ever. And with the capabilities of the revB, it's the most incredible computer ever. To do everything all within that tiny aluminum casing is awesome.