I honestly don't see what the problem is. The competition attracts all sorts of people regardless of sexuality. I would not deny that there are a large number of LGBT chaps here ( *waves* ), but I don't think it's cheap or tacky to have such a move. Surely it's an irrelevance in this day and age whether it's a gay or straight kiss? I sincerely hope it is. If they're trying to win over a few LGBT votes, then what's up with that? There are no songs which appeal to everyone, so every single one tries to get support from its target audience. If this is a problem, well I really don't know how you could ever solve it!
And as for the actual kissing, well I'll wait until after I see what happens tomorrow night to come to proper judgement!