iPad 2 from official distributor in the UAE does not have the facetime app, you can not do anything about it...it is blocked by the Model number...the model # of those offically from the UAE have AE on the last two letter of their model #... those from the US have LL on the last two letters...so the firmware will detect this model # and will not install the facetime app. My ipad2 I bought from souq.com (Grey market) and I have the facetime app, I have updated my firmware to 4.3.2 and still I have the facetime app. So even if you go to other country or create an account with other country facetime will not be installed in your iPad2. The only solution is to buy from a country with facetime or buy the grey market ipad2.
This is the same thing with the iPhone 4's that were officially sold here in the UAE, no facetime unless you jailbreak the iPhone4, and there still no jailbreak for ipad2 right now.