I sent a mail to Hollywood Collectibles last week, and got an answer yesterday! The only new detail about it is that it's a full scale 1:1 prop. He could not say anything about the price and stuff, but he said that:
"This piece is still in major production due to the meticulous and fine detail of the prop."
I think that that is better than no news. Personally I hope this Pulse Rifle will be like this guys Airsoft:
http://www.youtube.com/watch?v=0pj7UDh_N_8Now it's time to beat Sabres record in findind toy and merchandise news.... i'll give up