Does anyone know the sales ratio between MB, MBP and MBA, say in the last quarter? Before the 13" MBP, I believe the polycarbonate MB is the most popular choice for Apple laptops. However, after the 13" MBP was released, I now see more aluminum MBP on campus at my university compared to the white MBs. With only $200 difference, I wonder if Apple now sells more MBPs than MBs. In addition, I think the MBA is hitting an all-time low sales due to new choices of 13" MBP (much more powerful with slightly more weight) and the upcoming iPad (even more portable than MBA, and much longer battery life).