> I don't think that BeOS was as mature as NextStep.

It certainly was not. It was single user only - no way to log in with different users, no accounts, just a single default user.

Networking performance was awful in R3 and R4. In R5 they replaced the user space network stack with BONE, an in-kernel IP stack that promised better performance. By then, too late as the Palm sale was around the corner. I remember talking to JBQ (Jean-Baptiste Queru) on IRC about this and how that effected their micro-kernel design and JBQ stated that their claim of micro-kernel was for marketing purposes only.

It was a multimedia first system designed by multimedia geeks. Fun for its time and had a lot of great ideas.