(This is not complete, please send email if I have missed someone.)
Eirik A. Nygaard - IO Patch
Cal Heldenbrand - Awesome feedback on performance
Dustin Sallings - Insight into protocol
Tobias Luetke - Performance Feedback
Andre Cruz - Help with getting the CRC Hash function to match other connectors
Brian Pontz - Hsieh hash
Tim Bunce - Perl Driver work and feedback on API
Kevin Dalley - Bug Fixes
Patrick Galbraith - work on C++ interface
Ross McFarland - Idea for sorting servers.
Marcelo Fernandez - TCP/IP timeout pieces
Yin Chen - Ketama support/weighted support
Monty Taylor - Debian Packages, Cleanup work for configure