I have a current MBA, and I find 2GB very limiting when running eclipse, tomcat, photoshop and firefox. 4GB will be very nice.

Also, a second USB port! Oh, the luxury!

You must have the original? I have the Air that was available yesterday and it has 2 USB ports and 4GB RAM.

It was a second gen, not 'current', you're right. :)

I could possibly have gotten 4GB with it, but my aging brain still couldn't conceive of anyone ever needing more than 2GB. Now I know better, haha.

pretty sure 2GB was std, but 4 was available as a bto option

Sandy Bridge is way faster than Core 2.

If you are doing any computationally intensive stuff, it may be worth the upgrade (I had postponed the purchase of a MBA for this reason, and I am definitely going to buy this one).

Yeah, I have a 2010 11" MBA, and I'm thinking about the upgrade. I really wish they'd bumped the max RAM up to 8GB; Eclipse for Android development is cramped in 4GB with other stuff running. I'm a little worried about the Intel graphics as well.

The upgrade is also a little more expensive, too. I think I paid $1500 for the maxed-out 11" last year, but maxing out the new 11" costs $1650.

But the Core i7 and 256GB SSD are very tempting. I dual-boot OSX and Linux, and 128GB is starting to feel a bit cramped. I was looking around at aftermarket SSD upgrades for my existing Air, and an off-the-shelf upgrade to 240GB would cost me $520, which is a third of the cost of the laptop! I could probably sell my current one for $800-$1k, and get the new one for $1650 without breaking the bank.