Trying to build a list of 6502-based single-board computers.
The ones I can think of offhand are:

KIM-1
SYM-1
SYM-2
OSI Challenger C1P, C4P, etc
AIM-65
Amico 2000

What else is there?

Toshi

Compukit UK101 aka Ohio Superboard II
Acorn System 1 etc

I guess you only mean bare boards? The likes of the Atom, Electron and BBC are all single boards, but enclosed.

Do industrial-bus SBC's, like STD bus, count? (These are definitely not consumer stuff.) The one I used in the ATE shown at http://www.6502.org/users/garth/projects.php?project=6 was a Cµbit 7540. It cost $295, ran at 2MHz, and had a 6522, 6520, 6551, 6532, and seven 8KB memory sockets, most of which could be either RAM or ROM. There was also a 7530, 7520, and 7510. Cubit was a division of Proteus Industries.

Two others in the STD Bus Buyers' Guide at the time (1990) that were 6502-based were:
Enterprise Systems Corp. 10812 at $260
HiTech Equipment Corp STD-65F11-00 at $199

These, being STD bus, could be put in a card cage with other cards for added memory, disc-drive controllers, video controllers, serial & parallel I/O expansion, IEEE-488, analog I/O, communications controllers, etc.; but the individual SBC of about 4.5x6.5" was a complete single-board computer. For the ATE, I used a couple of off-the shelf STD-bus signal generators and an A/D board, and made the rest: programmable power supplies, loads, relay boards, DVM board, and others.

BTW, "STD" came from "simple to design," not from "standard."

There are three Apple-1 based computers:

The original Apple 1
the Replica 1 ( which is a great computer, btw )
and another one out of europe that I cant think of the name of

- Derrik

The STD bus boards don't really fit.

I was thinking more of a computer/microprocessor trainer which fit the following criteria:

o 6502-based
o Sold as a board (without case)
o On-board keypad or keyboard

After browsing around, I came up with one more: EPE Microlab.

Toshi

Ok, that part would disqualify the STD-bus boards. They were a complete computer sold as a single 4.5x6.5" board with no case though.

A-ONE, designed by San Bergmans.

More info at http://retro.hansotten.nl

European SBC's

MCS-Alpha
Proton
Elektor Junior
KIM user club DOS65
Acorn

Microtan 65 aka Tangerine