MESS 0.153 released earlier this week with Apple /// emulation.
RS232, CFFA2, Applicard, and Color emulation included. (The SVN version is still required for 115K RS232.)
A ready to run zipball can be had here:
http://asciiexpress.net/files/AppleIII/apple3rtr-v1.8.zip
Zipball README:
http://asciiexpress.net/files/AppleIII/README.apple3rtr.txt
Videos:
Getting online with Access ///:
http://asciiexpress.net/files/AppleIII/Access3Online.mov
Computing Pi with Visicalc Advanced:
http://asciiexpress.net/files/AppleIII/visipiv2.mp4
Copying files from CFFA2 to VSDRIVE:
http://asciiexpress.net/files/AppleIII/apple3vsdrivecopy.mov