Tiago Vignatti has put out some statistics on the contributions to X.Org development during the X.Org Server 1.10 development cycle, to the xorg-server itself as well as the open-source drivers.
The results can be found on his blog
Oracle's (former Sun engineer) Alan Coopersmith led with the most change-sets, sign-offs, and reviews. Overall this put Oracle in first place for the most change-set contributions by employer, even beating out Red Hat, Nokia, and Intel.
There were 70 employers involved during this process. When it came to the most changes lines overall, coming in first was actually Matthew Dew, who has been working on cleaning up and organizing the X documentation.
When it came to X input drivers, to no surprise at all, Peter Hutterer had led that work. For user-space video drivers, the work was led by VMware's Brian Paul followed by Intel's Eric Anholt, Vinson Lee (VMware), and David Airlie (Red Hat). In terms of lines changed when classified by employer, the work was led by Intel followed by VMware and then Red Hat.
Ttiago, an X developer at Nokia, then went to comment on the Microsoft-Nokia deal
. "I’m sure MeeGo is not dead by any chance though… Nevertheless, Nokia’s contribution to X11 development will be obviously diminishing. It’s sad. Our Graphics Team were just feeling the first effects of the new introduced culture for pushing whatever work (well the ones we are allowed) to upstream and now all was cracked down. So,unfortunately this won’t happen with the same volume anymore and the collected numbers of 1.10 is definitely a mark for Nokia."