Is The Linux Kernel Nearly Finished?

Here's an interesting discussion about the Linux kernel regarding if there's anything exciting left to be written. When some suggested starting over with a completely new design, Linux creator Linus Torvalds exclaimed, "No. Only stupid people think they should throw away old proven concepts. What happens quite often in academia in particular is that you find a problem you want to fix, and you re-design the whole system around your fix." The full debate is well worth reading...