Convention BAT revealed!
 

Whilst I admit I haven't been impresssed by the con set so far, this one really blew my socks off. Check it out:
http://www.yojoe.com/magazine/2008/05/19_hhbat.shtml

Whoa, those actually look really cool!

i must agree this convention set is looking cool
the bat colours are cool :)
looking forward in getting this set

That is a very nice BAT!!!!!!!!!!!!!

I knew it'd have to be something pretty fancy if Outrider was posting the thread, and it is!

Very nice combination of parts, and the colours are very striking without being garish. I already wanted this set, now I want this set with some extra BATs!

Sweet. I will definatly be picking up a few of these from somewhere.

Looks like I'm the first that didn't like the BATs. Well, if someone will be picking up an extra set I'll look forward for the Headhunters, Stormtroopers and SWAT guys :D.

how much cost this set?

If you read the filecard on the preview page, there's also an indication of another con-exclusive figure, the cobra mechanic Hotwire

This is the first figure from the set that I like. It's amazing!