With apple releasing more retina devices and now being rumoured of working on a new retina MBP 13" (http://bit.ly/M9SRVr), do you think the next version of OS X 10.9 or the later 10.10 will be retina only? Of course we have to wait until all macs have retina displays, but I think its realistic that this time within the next 2 years all macs will have retina displays. What do you think?