I'm interesting in getting a long range WLAN link going, something similar to the link that was attempted by the guys at the DNA Lounge.
Has anyone had experience of this sort of stuff? What equipment did you use? What sort of distance did you manage? More importantly, what are licensing issue are there around things like this?

We are going to try to link two buildings about a mile apart with clear line of sight. If it's sucessfull we may try further distances.