Why use wpa-roam?

[Alexandros Gougousoudis]

Hi,

one question, what for is wpa-roam? I have a few Wlan enviroments (home, 
work, friend) and configured it via wpa-roam in my linux (Debian lenny, 
wext with bcm43xx module, Kernel 2.6.23) with different 
pseudo-interfaces, as found in a HowTo. All networks are in one 
wpa_supplicant.conf. It works.

I had some trouble and played around with my settings an removed all the 
wpa-roam stuff and the pseudo-interfaces and took the real wlan 
interface. It also works in all of my enviroments (more or less).

So my question is, what is it for, if it works without it?

Please enlighten me. :-)

cu
 Alex