Would Upgrading to 16GB RAM be Beneficial? Looking at the swap space being used, a reboot will recover that space from your hard drive and speed up the machine, but this isn't really a fix if you are working on this machine all day.
Macbook Pro vs Macbook Air for IPad development I bought my Air last June with 8GB of RAM and 512GB SSD. On this machine I haven't had any issues with RAM, but my MBPR with 8GB of RAM that I use to build large projects (15 minutes for a full build) could use more RAM.