JetBlue's existance makes me happy; finally a WN equivalent that will help out fares on transcons. Deflating the value of NoCal-IAD service is just great! BTW, for those of you that aren't aware, AA has also been trying to throw a wrench in JetBlue's plans -- IMO, AA;'s LGB tactics are the most alarming:
http://www.flyertalk.com/forum/Forum71/HTML/007754.html