Let me just preface this by saying that I've read most of the discussions on these forums about whether a Sandy Bridge update would be better or worse than the current configuration of the MBA. The reason I am adding yet another thread to the debate is that I wanted to see if anyone can comment on the importance of the GPU to photo editing, specifically in Aperture. I sold my 2009 15" MBP back in December in order to offset most of the cost of my 13" Ultimate MBA. At the time I was worried about two things, the reduction in screen size and the slower processor. Since the only work that I do that is somewhat processor intensive is photo editing, I was willing to make the sacrifice for the greater portability of the MBA. Most of my photo editing is done in Aperture using NIK software plugins like Color Efex Pro, Silver Efex Pro, and HDR Efex Pro. To my surprise, my new computer performed just as well, if not slightly better in Aperture than my MBP with a more powerful C2D processor. I had thought that the processor downgrade would significantly affect performance, but it didn't at all. I am wondering if this is mainly because of the SSD, or if the 320M comes into play here. I know that Silver Efex Pro 2.0 has been designed to make more use of the GPU, but I don't know how the other NIK plugins or Aperture itself utilize the GPU. The reason I am asking is because with all this talk of ULV SB updates to the MBA, I am curious as to whether the much better CPU would improve my photo editing experience even more, or is there a chance that trading the 320M for the HD 3000 could actually have a negative effect. In other words, how important is the GPU to photo editing? For me personally, it would take a pretty great leap in performance to justify giving up the amazing machine I have right now. It is hands down the best computer I have ever owned. But I thought this discussion might be useful to other people thinking about buying now or waiting for the update, since most of the discussion so far has been about the GPU's effect on gaming performance.