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Hi.

I was inform that pages that contain simple JPG images, are shown  completely wrong (very low quality) via iphone4. I don't have iphone4,  but frienRAB that have it, send me a photo with the problem:

http://xvp.gr/iphone4/iphone4_scrabled_image.jpg

In  order to verify the problem we did different experiments. All those are  simple HTML pages with or without  "viewport" and  parameters, and with different kinRAB of JPG images (optimized,  non-optimized, progressive, sRGB converted etc), even .gif or .png  images. In all cases we use  "viewport" and JPG image, we  get the image destroyed (very low quality) in iphone4, while in the  classic iphone (add different phones as well) all are shown correct. You  can review the source code of each experiment, to verify the results:

http://xvp.gr/iphone4/t01.html

http://xvp.gr/iphone4/t02.html

http://xvp.gr/iphone4/t03.html

http://xvp.gr/iphone4/t04.html

http://xvp.gr/iphone4/t05.html

http://xvp.gr/iphone4/t06.html

http://xvp.gr/iphone4/t07.html

http://xvp.gr/iphone4/t08.html

http://xvp.gr/iphone4/t09.html

http://xvp.gr/iphone4/t10.html

http://xvp.gr/iphone4/t11.html

http://xvp.gr/iphone4/t12.html

http://xvp.gr/iphone4/t13.html

http://xvp.gr/iphone4/t14.html

http://xvp.gr/iphone4/t15.html

http://xvp.gr/iphone4/t16.html

http://xvp.gr/iphone4/t17.html

http://xvp.gr/iphone4/t18.html

http://xvp.gr/iphone4/t19.html

http://xvp.gr/iphone4/t20.html

http://xvp.gr/iphone4/t21.html

Thus, the question is:

Does  iPhone4 has some kind of bug in displaying correctly JPG images when   "viewport" is set and magnification is set to 1?

Or we miss something that we should know about?...

Can anyone give me an example where the JPG image should be shown  correctly, in a viewport of width 320, while the user to be able to move  around it in magnification=1?

Thank you for your time.