Yeah, the way he first through it out there was what made me think he was joking at the start.

As for challenging in arenas I thought we could. In the video posted in the movies forum about Frenchy vs Swifty it shows a challenge appearing on Swifty's screen for a second match coming from Frenchy it seems. I could br wrong, haven't WoW'd for ages until last night and never really pvp'd but it looks like that was what was happening.