Not really, but I doubt I'd mind if they were. You should take another pass on the MBAs at a Mac Store. Launch term, change some fonts, muck around a bit and see if it's acceptable. I was originally going to upgrade to the MBP retina, but changed my mind after using a 13" MBA for a few min.

iOS compiles could be snappier I guess, but everything else is fine. Its faster than my 2010 MBP anyways.