state of WLAN

Hey all,
I have some questions. hopefully someone could answer it.
1) how does ieee 802.1X differ from 802.1i ? Is there an implementation
for them somwhere? 2) I know a bit but not as much like how does
authentication in 802.1X work ? is it secure and industry standard or
superseded by something else? 3) How do wlan & cdma/gsm work together?
is it done? or still in research?

thanks
ps - I was directed here by Old guy from c.s.misc.