Saw a note that a male birth control pill would be "easily reversible" just like the existing female pill, which makes it more appealing to many couples.
I still think non-hormonal contraception, like RISUG, is a better solution. It's inexpensive, long-lasting, reversible and it doesn't require monthly copayments or daily drugs.
Unfortunately neither of these options are available in the U.S. yet. But at least people are working on it.