Other European Frequent Flyer Programs - NIKI - New destinations: Belgrade, Bucharest, Sofia

NIKI is introducing 3 new destinations as of February 1, 2010, with daily flights to:

Belgrade
Bucharest
Sofia

All flights are already bookable at one way rates that start from 29 EUR (all taxes included):

http://www.airberlin.com/site/angebote_c.php?VON=VIE&NACH=BEG&LANG=eng&MARKT=AT&RMT=HG&languageid=0&MARKT=AT

This might have something to do with the end of SkyEurope which used to fly these routes (I know the SOF one at least).