Off the road
http://www.cypherpunks.ca/otr/ encryption for messenger that supports various other messengers like Pidgin Miranda and some other one...
It would be great since Microsoft obviously will never implement it and unfortunatly the other messengers dont support Video Chat.
Plenty of people out there use OTR and it works with messenger protocol just cant install it directly into messenger it has to be installed into pidgin yet another half a dozen messenger for one single job...