Coke accidentally created an ad for our app. What should we do?

http://www.youtube.com/watch?v=jOjDzFWsgFo here is the advert and the app http://apps.facebook.com/cocacolalike/home.php The advert does not say that much about the app. Basically the more you like stuff the better it is for your heart and health as liking things makes us feel good and others as they receive likes, so go ahead and start liking today, tomorrow and everyday. The like-o-meter keeps showing you everyday and then they start listing different users number of likes etc etc. No pro-Mubarak stuff at all, in fact they even show some footage of a protester standing in front of a riot van. Let me know if you want more info and good luck.

I speak Arabic, taking a look for you now.

Dude you're getting free traffic. I'd be happy. You won't be suing them if unless you'd like to lose, and they can't sue you because you were there before they were.

see http://news.ycombinator.com/item?id=2627051

"Finally, does anyone speak Arabic?" Lol. The CIA has been asking that for years.

In all seriousness, they probably didn't know they were doing it. If I were you I'd call a trademark/patent lawyer yesterday and see if you can register, given that you can show prior use. Coca-Cola is notorious as one of the absolute most-vicious companies on the planet when it comes to both registering and protecting their marks; there's a high probability they already registered Like-o-Meter, and will attack you as soon as they hear about yours.

This boost, on the whole, may not be a good thing; find a lawyer who's willing to assume an offensive posture if you want to hold onto your app. And good luck =)

re: UPDATE: apparently the entire concept of their app is a direct rip-off of mine, not just the name. I guess that makes the legal issues more interesting?

It might. Don't go on a spending spree yet. Let a competent lawyer look it over. My guess at a glance -- and I'm not a lawyer, just stewed in IP issues -- would be you'll have a hard time getting anything out of their theft of your concept, short of owning a patent. Copyright could give you some relief if they directly ripped your code off and you can prove they decompiled and/or used something from that. Your best bet again is probably trademark infringement against your mark which had prior use. (That also depends on if Facebook themselves haven't trademarked the word "Like" the way they've trademarked "Book".)

Other than a lawyer, your only bet is to raise an unholy racket here and in the blogosphere and make sure everyone knows you did it first. Which I fully support.