Thoughts on the updated MBA from a rev B owner
Having bought my 1.86/SSD MBA last November, I feel like I've gotten good use out of it, so the (admittedly steep) price cut doesn't bother me too much.
In fact, given that the only upgrade was a fairly minor CPU one (unless they also bumped up the GPU - it doesn't seem conclusive yet that they have), I'm actually quite pleased that I bought mine when I did; I still feel like mine is still close enough to the new cutting edge specs.
And despite the major upgrades to the newly-dubbed 13" Macbook Pro, I think I'd still buy an MBA.
The 1.5 lb weight difference might not seem like a lot, but when you think about it as 50% extra and travel a lot, it actually is. The 4GB RAM and extra ports/SD slot are very nice, and similarly the superior battery life on the MBP is extremely tempting, but as far as advantages to the MBP go, that's about it for me.
Once you add a 128GB SSD to the cheapest 13" MBP model, it's only $100 less than the equivalent MBA. If you go ahead and add the 4GB RAM and faster processor, then the MBA actually becomes the better value machine. Given the significant weight trade-off (and the fact that I very rarely use a CD/DVD drive), I'd have to say that I'd still pick the MBA over the 13" MBP. The lack of an ugly glossy black bezel would just be a bonus...