Here's a bit of a review for anyone who cares. I would also like anyone interested in to weigh in on a few questions and thoughts I have. I sold my MBP 17" 2009 (Matte, 2.66GHz, 4GB, 500GB 7200RPM) recently. I got my MBA 11.6, 1.4", 128GB, 4GB in December but haven't used it very much. I bought it for a holiday trip since I do lots of photography while traveling. It fits in my camera bag, which makes for one less thing to carry through an airport, and to forget (Yeah, almost lost my MBP a couple of times on a travel excursion... long story.) Anyway, I've made the full transition from MBP to MBA. Here are some details around the transition. Hard drive I was using about 120GB on the MBP. I've transferred my iTunes library (21 GB) to my Synology NAS (2 TB) and have the MBA playing music and syncing from there. My documents folder was also quite sizeable. Also moved to the Synology NAS. I use Dropbox for syncing important and recent docs between MBA and iPhone. Synology also has a number of tools that allow me to access and manage files remotely. CPU I take lots of photos. I have my Adobe Lightroom library on my MBA managing about 26,000 photos stored on my Synology. Browsing and managing photos on the MBA is faster than the MBP. Interesting. The same holds true for photo editing. The MBA is far more snappy than my MBP for photo editing. I'm quite surprised. Also, the MBA doesn't get nearly as hot as my MBP when performing these tasks. Display I had the anti-glare screen on my MBP. The glossy MBA screen has not been an issue so far. It's calibrated so I feel comfortable with it for quick photo editing. It's still taking some getting used to, but overall very good. I plan to get a 24" external monitor for more serious photo editing. The resolution obviously can't match my MBP, so that's taking some getting used to. I'm learning to browse in full screen and with minimal browser toolbars. The resolution is very good. For photo work the 24"monitor will be essential. Video and Audio It only throws fits when playing 1080p content. This system wasn't intended for that, so I can live with that limitation. The MBP threw mild fits with photo editing. Considering that I do more photo editing than video watching on my computer, it's an acceptable tradeoff. I'm hoping that the MBA is capable enough to do basic video in iMovie. I haven't tried that yet. The speakers are pretty good for a system of this size. I also have very nice headphones if I want better sound. Trackpad The trackpad on the MBP is better than my MBA. The MBA's trackpad feels slippery by comparison, and isn't as responsive. I find myself having to re-gesture to get the MBA to respond. I do miss this out my MBP. Battery Pretty exceptional for browsing and basic productivity tasks. Ports I don't connect a lot to my MBA, usually my card reader and my iPhone. I have a wireless printer. I will admit that an SD slot would be nice. Anything to save me from carrying a card reader would be great. Oh wait, my Sony SLR uses CF! Networking I have the USB to LAN adapter in the event I need to have wired connectivity. I tether to my iPhone when I don't have WiFi access. I like the flexibility I have whether at home or away. Noise Even when under load, the MBA is whisper quiet. When my Pro was under load I have to check resources to make sure there isn't something tying up CPU resources to cause the heat and noise. Cool Factor I traveled to Seattle about a month ago and had to check email, and follow up to a number of voicemails. My room wasn't ready yet, so I had to hang out in the hotel lobby and used their WiFi to do it all. It's performance, and not feeling constrained by the display size made me think, "Wow, this thing is so great to travel with." Verdict I'm happy I made the transition from the MBP to the MBA. I really had no use for two laptops. Now that I've transitioned, I realize how capable a machine this is. To get performance equal or better than my MBP in a smaller package is pretty fantastic.