[rbanffy]

I think what I meant is that the OS model of what a program is constrains what we think can be done on it. I can't think of anything that couldn't be done in Haiku that can be done on Windows or a Unix.

When I think of non-Unix and non-MVS i'm thinking more on the line of the IBM i, PalmOS, or the Newton OS. All three are quite alien under the hood to anyone who grew up on a Windows/Unix world.

[ofalkaed]

If that is what he meant than iOS and Android are that, their touch interface allows you to do things which can not be done in the Windows/Unix world which is why the Windows/Unix world is bringing in touch.