QUOTE(Jason @ Nov 11 2010, 10:31 PM)
having seen it in person, both are crystal clear. visual quality i would give both 10/10. Power Support SP is
very good. if i didn't want the oleophobic coating i will definitely choose Power Support crystal clear. cause its cheaper

you will not go wrong with Power Support. only reason I opt for SGP is for the oleophobic coating.
to be very honest, i wouldn't go for Power Support's Anti Glare or SGP's Anti Fingerprint over their crystal clear counterparts.. its not worth degrading the beautiful retina display (my personal opinion.) that being said, both PS & SGP's matte SPs are way better than the rest of the competition. in most cases people can live with a matte SP..but the moment they place their iphone 4 with matte SP next to a naked iphone 4..they will see that it is indeed blurred. defeats the purpose of the retina and the high resolution.. IMHO.
I am here to share my bad experience with powrsupport crystal film.
After less then 2 months usage, these r the dissatisfaction, I have peeled it off!
1. It is so thin
2. I am not heavy user to my iPhone, yet, d sp have developed scratches/ hairlines
3. To my surprise, there was a dust slipped beneath d sp...
I am just frustrated, spent a premium price for such low quality item.