Linux Kernel Development: How Fast it is Going, Who is Doing It, What They are Doing, and Who is Sponsoring It

The report is packed with all kinds of interesting information like the following:

• The Linux kernel is growing about 10% per year. Glyn Moody is not so happy.
• 26 developers contribute more code to the kernel than Linus
• The Linux kernel averages 2.7 months between releases.
• On average, there are 2.83 Linux kernel patches accepted each our
• Canonical doesn't appear on the list of around 30 companies sponsoring Linux kernel development in a substantial way. I don't know why that is.
• The number of kernel contributors per release has grown to over 1000 very recently, but was under 700 just two and half years ago.