"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 =)