Bi now, gay later?

I filch, quite shamelessly, an article heading on the website of the Sydney Gay & Lesbian Community Publishing Limited and leave it to those who care to follow the link to read the article in question to make their own minds up on the matter. The title amused me, though, as does the quote by Phoebe from Friends:
"Sometimes men love women. Sometimes men love men. And then there are bisexuals. Though some just say they’re kidding themselves."