Any source for that? Last I heard Samsung was only one in a group of the companies handling the manufacturing, not the engineering, of the iPad Retina display.
For this this one the manufacturing is stated as being LG Philips.
Re engineering apparently there's stuff from Sharp, an Apple engineer and possibly others.
Directly comparing thicknesses between this and the iPad and attributing it to the retaining system alone is probably one of the silliest things I've read on iFixit.
Maybe the result wouldn't help with your agenda so much, but surely an honest analysis would to consider the extra battery (iPad's battery being over 2.6x larger) and display thickness (iPad's display needing a much stronger backlight).
Please figure it out correctly and rewrite Step 4. As it stands it's about as honest as a politician, which I hope is not where you guys are going with this.
@JdoubleH: Before you say that have you looked at the price of replacement batteries for the iPad? iFixit sells the new battery for $119.95. Even the old iPad 2 battery costs $79.95.
Now, Apple will replace any of them for $99. If you go to a Store it's usually done in minutes too Plus you get a three month's warranty on the repair.
So is this really an issue?