Should we just expect little small changes or will there be any ground braking changes that make our new macs almost unusable in the near future? I´m now thinking highend vs lowend macs and the limitations of the lowends, like the eMac. It has the same graphics card as the iMac, just less memory, but it has only max 1GB of ram. E.g. today 256mb of ram is not enough and I wonder when 1GB will be too little? What bottlenecks should we try to avoid if we want to have our computers last longer or doesn´t it matter because our macs will brake before they become obsolete due to little changes ahead?