Ok, there's so many thread already discussing this, but all of those are seperated thread making us who want to buy their product kind of difficult to compare. so i make this thread hoping aanyone who has a good Screen protector to post their own review here. Prefferably those "higher end" model such as SGP, Power Support, Martin Fields, etc. I my self has uses Martin Fields Screen Protector since a long time ago. since the days where PDA's uses stylus to tap on the screen because the martin fields protector is so clear, and bright, and also makes the stylus "glide" easier and smoother on the screen. actually i already ordered 1 from http://www.martinfields.com/US/MFOP-iPhone4 its still on the way so i can't give any comment yet but from what i see it covers the front camera and also it have a screen protector to cover the rear camera as well, its good cause it will protect the camera lense but i dont know wheter it will kill the picture quality taken by the camera or not. currently i uses SGP Crystal Clear. for me its just OK cause it's not super clear , my martin fields on other gadgets that i have definatelly looks clearer, giving you the impressions that no screen protector applied on them. the SGP crystal clear on my iphone is not as clear, i can definately "see" that there is a screen protector installed, if you know what i mean. so others, please post ur review here, thank you, ill update once i had my martin Fields overlay installed on my iPhone.