Hey MiGBuster, I think you meant to say June 2010 patch? I don't see any July 2010 patch for SF2 in Thirdwire's download site and I remember 1st reading the feature in TW's forum concerning the June 2010 patch (see GrimViper's comment: http://bbs.thirdwire.com/phpBB3w/viewtopic.php?f=2&t=7753&start=16). I also found it being implemented at that 2010 patch.
Personally I didn't like how that feature is being implemented. It feels like a cheat mode to me. Upon requesting help, within a minute additional allied fighters seem to pop out of nowhere. I did some experimenting and observing that happened through the Map view. It looks to me that the enemy AI can do the same thing too.