Stephen Heumann has released AFPBridge, a tool that allows an Apple IIgs to connect to file servers using the Apple Filing Protocol (AFP) over TCP/IP. It works by using the existing AppleShare FST, but redirecting its network traffic over TCP/IP rather than AppleTalk.
With AFPBridge, anyone with a Marinetti-compatible network interface (such as an Ethernet card) can connect to AFP file servers from a IIgs, with no need to set up a LocalTalk network. This provides a very convenient way to move files to and from the IIgs, just by copying them in the Finder or accessing them in any other IIgs program.
See the AFPBridge website for more information.