male birth control??

what do you guys think about the "male birth control"? i think guys should have the option to protect themselves too! but then again, would it be popular among men, since women have always had to bear the "burden" of birth control? some guys don't feel manly without sperm! comment on what you think!

http://news.yahoo.com/s/nm/20060428/hl_nm/pill_men_dc_2