I have 2 Planetside 2 beta keys. I got one with the PC Gamer UK of July 2012, the other I won in a giveaway. The keys from PC Gamer are said by Matthew Higby (Planetside 2 creative director) to give priority access together with fan faire attendees and PS1 players: here
Looking to sell them at around $30, but I will consider other offers. I will also accept trades of keys for steam games or other betas, but it will have to depend on my interest in them whether I accept them or not.
PM me, post here or send me an email at: fatalefout2 [AT] gmail [DOT] com
Payment can be through my (verified) paypal account or bank transfer.