For years i never realised how good this logo actually was until the arrow was pointed out to us in a lecture in first year. Its so simple, but actually quite hard to see - its almost like a subliminal advertisement. Since i was told about it, i have asked so many of my friends back home if they can see the hidden aspect to the logo and not a single one of them has spotted it. But after its been pointed out to you, its the only thing you look at whenever you see the logo the next time.
I have also found the equivalent of the FedEx logo from Dubai, written in Arabic. The whole thing looks as though its backwards compared to the one we are used to. The orangey/red 'Ex' is at the front with the arrow pointing the opposite direction, with the purply/blue 'Fed' is on the right. But still, i like that they have still managed to incorporate the arrow into Arabic writing in order to try and keep their brand personality throughout.