the pinout of samsung's stock headset is universal, you may use it on iPod, HP 4-pole audio+mic jack and in others, but not on nokia. nokia headsets follow a different pinout pattern, swapping ground to mic+shield. well, I did successfully converted a nokia headset to a universal one.
wait, I was lost there, but still, samsung's 3.5mm jack is universal. only nokia is an exception. hehehe. you may use any headset except for old iPod headsets and nokia headsets. iPod 4, iPhone 4 and newest ipods have the universal jack pinout configuration that shares with almost all of handsets.