As the MBA's should be poised for going down anyway (netbooks), the MacBook should get LED backlit screens anyway, SSD should replace conventional hard drives more and more, and the rumors about aluminum MacBooks pop up again and again, Apple might only "need" two notebook lines:
- MacBook Pro 13 / 15 / 17, including dedicated graphics, optical drive (Blu-ray), high-end CPUs and the usual FW/LAN/USB ports = "optimised" for features, expandability and performance
- MacBook Air 13, sacrifing ports and performance for the form factor (and greatly reduced price compared to now) = "optimised" for battery runtime, weight, portability
Of course, that's just some idée fixe I have had for a while... which I keep pushing on these forums every now and then
- MacBook Pro 13 / 15 / 17, including dedicated graphics, optical drive (Blu-ray), high-end CPUs and the usual FW/LAN/USB ports = "optimised" for features, expandability and performance
- MacBook Air 13, sacrifing ports and performance for the form factor (and greatly reduced price compared to now) = "optimised" for battery runtime, weight, portability
Of course, that's just some idée fixe I have had for a while... which I keep pushing on these forums every now and then