Besides the places listed, Changi Airport T2 transit area and if you travel to KLIA also can use Wireless LAN to access Internet.
Now, come the config part. To gain access, need to know 2 parameters, SSID(Site ID) and Encryption key. In most of these site with free access, the encryption key is turn off, i.e do not use encryption at all. As for SSID, 2 choices. First choice use the client utility come with the PCMCIA card to do a scan on the base station. Once you got the SSID name, key in the SSID in the client configuration setup. Second method, if you have Avaya/Orinoco or Cisco PCMCIA card, use the following SSID.
Avaya/Orinoco - SSID use "ANY"
Cisco - SSID use "tsunami"
If you have Avaya/Orinoco or Cisco product, use the above SSID and turn off the encryption key. This will allow you you to gain access to any public site which offer free access without the need to key in the specific site ID.