According to a previous post, iPod touch units sold by Arab Computers and carry the model numbers MC547AB, MC540AB and MC544AB has FaceTime disabled. And now the Apple Saudi Arabia iPod touch page confirmed that.
On these countries only Retina display, HD Video Recoding and Game Center are featured.
iPod touch Tunisia page
iPod touch Saudi Arabia page
Qatar’s page had Game Center removed! Most likely because the Qatar iTunes App Store has no games!
Basically iPhone 4 carriers dictated their restrictions and forced them on other devices.
Arabic version of this post on SaudiMac Arabic Edition.