NOTICE: there is no order, either of merit or whatever, intended in this 
listing. Just the who is doing (mostly) what, to help anybody.

 David Schleef (ds@schleef.org):
- the big boss of directories layout, PPC, rtnet, patches coordination and
  making.

Erwin Rol (erwin@muffin.org):
- AIO module and related operations, C++ support.

Giuseppe Renoldi (giuseppe@renoldi.org):
- rt_com_lxrt, spdrv, manual coordinator.

Ian Soanes (ians@lineo.com):
- trap handling, watchdog, kgdb.

Karim Yaghmour (karym@opersys.com):
- LTT interface, related parts of kernel patches to integrate
  Linux-LTT-RTAI, PPC, rtai.c.

Lorenzo Dozio (dozio@aero.polimi.it):
- Configuration support.
- RealTimeWorkshop support within RTAI.
- Comedi_lxrt.
- testing, a lot of friendly support to many users that write to
  him for help and explanations.
- uRTAI.
- RTAI-Lab.

Massimo Bertani (gmbertani@yahoo.it, http://www.geocities.com/gmbertani)
- tbx.

Pierre Cloutier (pcloutier@PoseidonControls.com):
- lxrt, trapping traps, dynamic memory management, Octave support
  within RTAI.

Steve Papacharalombous (stevep@lineo.com):
- posix extensions, dynamic memory manager, RTAI for MIPS processors.

Stuart Hughes (stuarth@lineo.com):
- fifos.

Wolfgang Denk (wd@denx.de)
Wolfgang Grandegger (Wolfgang.Grandegger@bluewin.ch)
- if something is missing in PPC-RTAI distribution you might ask
  them before thinking it does not exist.

Guennadi Liakhovetski <gl@dsa-ac.de>
- ARM

Alex Zuepke <azu@sysgo.de> 
- ARM 

Thomas Gleixner <gleixner@autronix.de>
- ARM

Giuseppe Quaranta <quaranta@aero.polimi.it)
- RealTimeWorkshop support within RTAI.

Robert Schwebel <r.schwebel@pengutronix.de>
- AMD Elan
- Documentation
- Web Site

Bernhard Kuhn <bkuhn@lineo.com>
- m68k-nommu port

Thomas Leibner <thomas.leibner@tiscali-dsl.de>
- Hard/soft real time support for LABVIEW in user space.
- Comedi_lxrt.

Philippe Gerum <rpm@xenomai.org>
- ADEOS core support (and with it much of RTAI itself).

Last, but hope not least:
Paolo Mantegazza (mantegazza@aero.polimi.it):
- Linux patches, rtai.c, schedulers, shmem, tasklets, bits, net_rpc, spdrv,
  RealTimeWorkshop support within RTAI, comedi_lxrt, usi, newlxrt, RTAI-Lab,
  rtai_usp_posix.
