persia wrote:
It's interesting that Haiku and AROS are sort of in the same state, I remember Haiku was working on porting webkit at the same time as AROS and a lot of the issues were similar. I don't know if Haiku had better results than AROS or not...

It's a pity these people don't join up, to make a completely new OS, for todays rather complex wishes. For instance, multi-hierarchical, multi-relational files, programs and services set up in a coherent way, like a database. These kinds of things. There are many of these techniques to make clean and transparent system, towards the user and towards the developer.
Towards the user I'd say a drag 'n drop installation of programs, for instance.
POSIX and Amiga are both still much nicer than Windows, and Microsoft knows it, otherwise they wouldn't come up with Vista. But I'd say, it's time for POSIX2/Amiga2. And let it be made for one single modern computer configuration, and don't be bothered by writing countless of drivers.