Joiku Spot is one of my favourite applications and is great for anyone on the move. It allows a user to use his WiFi enabled S60 device to be used as a portable WiFi router and the internet connection (GPRS/EDGE/3G) of the phone can then be shared by a number of devices. This is specially useful if your laptop doesn’t have bluetooth or there is more than one person who needs the internet connection.
The current beta did have a few bugs and stability issues though and I am pleased to say that a new beta is out that includes a LOT of improvements to stability and a bunch of bug fixes. You can also now rename SSID to JoikuSpot_xxx, where xxx is defined by the user. The version with WEP encryption is scheduled to be out within a month.