my guess is that longhorn will be xp, with all the updates & patches, plus some extra "security" features that will inevitably lead to someone deleting your entire hard drive from an html link, or just by you hovering over a file. it will only have one gui to choose from, but they will finally use multiple desktops. it will take 5 gigs to install and require at least 2 gig ddr 2700 & a pentium 5 4.5ghz to even start it. of course you will have to buy a brand new windows license everytime you upgrade the memory or add a hard drive, and that will cost an extra 3000 a year because you will be supporting multiple licenses under one name...dont even think of using anything besides windows media player for media, or microsoft paint for graphics. if they detect soemthing like photoshop on "their" computer, you will be shut down and forced to pay a shitload of money for violating their eula. fuck windows. fuck longhorn.
and uh, mac os has changed dramatically from system 9 to X. im sure someone could explain better than i the difference between classic & osX.