Guillaume Maillard of the
BlueEyed OS is
talking to TotallyBe. He speaks of the differences between their project and OBOS and Cosmoe. He also claims that when programmed for and/or patched the right way, the Linux kernel and XFree can be very fast and perform pretty adequately to
BeOS 5 (UI responsiveness - the main advantage of the BeOS experience), while in most of the "other" cases, Linux is much faster than BeOS 5 (eg. server operations, compilation times, SMP scaling, VM etc).