Apple IIGS Communications Software from the Skunk Works BBS Archive:

MEGATERM11.SHK  ANSI terminal program
MINITALK171.SHK MiniTalk v1.7.1, a comm program in a CDA
QWKMAILGS06.SHK QWKMailGS v0.6, as close to a full-featured QWK reader as I've seen for any Apple II.  (You'll need PMPUnZIP and/or GS-ShrinkIt to unpack the .QWK files you download and ANGEL to create the .REP files you upload.)
QWKS16.SHK      Shell program to display the MESSAGES.DAT file in a QWK packet in "human-readable" form