I wanted to upgrade my old and trusty 2010 MBA this year, but the new MacBook left out many features that are important to me. So I guess I am waiting for a true retina MBA (if that ever comes). In the meanwhile I will continue chugging along on my 2010 MBA (13"/1.86/4GB RAM/128GB storage). Has anybody tried to run El Capitan on the 2010 MacBook Air? Just wondering if El Capitan would infuse a new sense of life into my old MBA? Is the 2010 MBA able to take advantage of the under the hood improvements that are supposedly coming with El Capitan?