Probably a good mix of both. No need to send out a completely new design along with the new chips, plus the designs are really not that outdated. In any case t

Probably a good mix of both. No need to send out a completely new design along with the new chips, plus the designs are really not that outdated. In any case these are squarely targeted at the "average consumer" market - lower budget, keeps computers for a very long time, places significant value on the higher battery life. Less reliant on perfect compatibility of enterprise software, which I am sure is something they want a little more time to sort out before committing their higher end lineup.