Um, yea... I would assume so.
All you have to do is a few simple steps:
to set up your SSID, you do a:
iwconfig [interface] essid [ssid]
Then to get an IP Address, you do a:
Then you're ready to go! Just remember though, if there is no encryption, then everything you do is open. Anyone can see what data you are sending, so I would recommend NOT doing anything that requires a password where there isn't ssl encryption.