Whoa, a wifi-to-rs232 modem emulator! http://biosrhythm.com/?page_id=1453
Plug into any device with a serial port, type some Hayes compatible commands, and you're off on the internet at speeds up to 115200bps (If your device supports it) or configure it down to as low as 300 for a super retro experience.
It doesn't specifically say it supports ssh though, and its built in web server cannot be password protected.