I don't think birth control pills for men will ever catch on for the simple fact that (men cannot become pregnant). There is no "real incentive" for him to remember to take his pill daily. If there is a pregnancy he (won't) have to make the tough decision of whether to terminate the pregnancy or carry it to term.
To be honest with you men who don't want to be fathers should not blindly trust a woman who states she is on birth control. Both people should take precautions to avoid unwanted pregnancies.
As we now live in a world with several strands of STDs it's not wise to have "un-protected sex". Birth control pills and shots will not protect you from getting a STD.