Is Linux Innovative?

“When you ask google for innovations in Linux what you get is
rather disappointing–on the first page there’s somebody’s rather
uninformed attack on Linux as lacking innovation, some PR bumbf,
and five separate references to a joint IBM/Red Hat press release
entitled ‘IBM, Red Hat Announce New Development Innovations in
Linux Kernels.’

“At the more general level the arguments for ‘Linux as
innovative’ come in three distinct forms…”