Hi all, I've already asked this in another thread, however I've struggled to find answers overall. I will soon be purchasing an MBA 13", with 8GB of memory and the 256GB SSD. Usage will be typical productivity (word processing, browsing, etc), as well as the occasional Windows VM for programming, likely in Visual Studio (in Parallels, VirtualBox, or VMWare, whichever turns out to be the best solution overall). Both the i7 and i5 have potential problems: i7 For light-medium loads like a VM, it is possible that battery life could take a fairly significant hit over the i5. i5 Many users have reported that the i5 model generally feels sluggish during normal usage (browsing, etc). I've certainly noticed this while playing with several models at the Apple Store. I have little doubt that this will become frustrating, and that the issue is likely down to the low clock speed during these tasks (the i5 will offer plenty of performance when pushed however). Opening new windows and applications, it is just slower than my previous 13" MBP (SB i5 2.3GHz, Crucial m4 128GB, and 8GB RAM). Of course, under light loads (which will make up most of the usage), both machines are basically on par, the i7 possibly being a tad better. Under heavy loads, the i5 offers longer battery life, but under such loads I'll probably be performing a task that requires only a certain amount of work (eg. encoding a video) as opposed to an ongoing task (eg. running a VM). At that point, you'd probably plug the machine in anyway. I don't want to get into a debate about whether the i7 offers more usable performance than the i5 for basic tasks. Those of us in the know can make our own decisions, and those who aren't have plenty of great resources (such as Anandtech's comparison) to come to their own conclusions (I will not state my view as this will undoubtedly instigate more pointless debates!). I will simply go for the model which has the fewest drawbacks - the likelihood is that if the i7 doesn't take a big hit while using a VM, I will go for that. How have you guys found battery life with Parallels, VMWare, or VirtualBox with your i5 and i7 MBAs during similar types of work? Those of you who have or have had both, what differences have you found? Those of you who have had or tried both the i5 and the i7, have you found that the i7 fixes the sluggishness that you have experienced with the i5 during general usage? Hopefully this thread will be a good little resource for those Googling for answers! Thanks all!