Is the iOS version of XCOM®: Enemy Unknown worth buying at full price?

If you like the game and can't wait than buy it now. But it's always worth to be patient.

What's with the ® in the thread title?

As TotalBiscuit said (at 1:40), you are getting nearly the same full content of the PC version for half the price. Sounds like a good thing to me.

If you have a PS3, get it via PS+. The iOS version seems to be pretty awesome, and there's an IGN review that tells lots of great things about the port.
The game alone is just worth that price tag.

hopefully there will be more awesome port like this for mobile, we're tired of those freemium that milking us XD

It looks great but I'm waiting for when it goes on sale at some point.

iOS games go on sale? Never noticed one before.

While the price is reduced, I'd wait for a deal to come out. I remember there being a deal on a very large Amazon sale not too long ago that had XCOM EU and Civ 4 and 5 gold edition for the same price.