With the current sorry state of the Islamic world. the Iranian mullahs and the corrupt puppet Pakistani military junta are only interested in staying in power, they could hardly care less about pan-Islamic views or military collaboration. In any case one phone call from the US embassy receptionist to the Pakistani generals would put an end to any joint projects even imaginary ones. Turkey and Iran have more developed economies and have a better chance of cooperation but Turkey is a NATO member and has to tow the US masters line too. It is all very sad that 2.2 billion Muslims with enough brains can not produce anything jointly. If you look at western aerospace industry, it all collaborative and all NATO member chip in even on the F-35 flying submarine project which sources parts from everyone.