Drivers for Arcnet cards are in alpha/beta: Frank Neumann <Frank.Neumann@informatik.uni-oldenburg.de>. Frank is looking for someone else who is willing to adopt the code; current sources can be found at ftp://ftp.informatik.uni-oldenburg.de/pub/linux/local/driver/.
? Support for the A2410 and DMI Resolver graphics boards is planned: Topi Kanerva <topi@susanna.oulu.fi> and Jes Degn Sørensen <Jes.Sorensen@cern.ch>.
? Support for the Commodore A2232 7-port serial card is under development: Eric van Dijken <E.vanDijken@PTT-Telecom.nl>.
Support for the Phase5 PowerPC boards: Roman Zippel <zippel@fh-brandenburg.de>, Jes Degn Sørensen <Jes.Sorensen@cern.ch> and Jesper Skov <jskov@cygnus.co.uk> (Phase5 contact person). See the APUS FAQ for the current status of this project.
Access to ISA cards via GoldenGate/BridgeBoard (as in OpenBSD): Arno Griffioen <arno@usn.nl> has done some work in this direction on the GoldenGate II. He currently has some non-DMA devices working using the standard Intel drivers; he is currently looking for testers.
Support for the Blizzard 1230-I and 1230-II SCSI boards: Jesper Skov <jskov@cygnus.co.uk>. The current test release of this driver is available at ftp://sunsite.auc.dk/projects/680x0/testing/blzII/; Jesper is also attempting to get information on the 1230-III board.
The following drivers were asked about (or I thought of them) but nobody has reported interest in writing them:
Concept and code for the use of chip ram and the blitter from user space.
Support for the Utilities Unlimited Emplant serial and SCSI.
BSC Alfa Data MultiFaceCard II support. Docs available from Jörg Dorchain <dorchain@mpi-sb.mpg.de>.
Improved Phase5 Cybervision support (on-the-fly mode changes, 15/16/24 bits-per-pixel framebuffer support, 3.2-based XF68_Cyber, new 3D version, 3D MPEG add-on support, etc.). Somewhat happening already.
Prodev Merlin graphics card.
Commodore A2090 SCSI controller.
Commodore Bridgeboards (A2286 in particular).
Commodore/Ameristar A4066 Ethernet card.
Commodore A2024 monitor (a high resolution grayscale monitor).
DraCo (Amiga clone/nonlinear video editor) support.
Access parallel IDE devices on some Amiga IO cards. My understanding is that both the GVP IOExtender and the Multiface III can support parallel IDE drives, at least in theory.
Access to ISA devices on the BoXeR motherboard.