It sure can be the future of online gambling, because some people don't gamble online because they don't want to put out information like there credit card number on these sites.
Bitcoin prevents that.
gambling sites use Bitcoin either as unique payment processor, or as one of this payment processors, and also the number of gambling sites which support Bitcoin is growing up daily,,
Bitcoin has been already accepted as payment mode for many popular sites, because of bitcoin gambling will be more easy, simple, fast and safe. Now anyone can gamble with bitcoin from any part of the world without sharing their personal details which is the main advantage.