viewing the ofps site in either mobile or normal mode using an iPhone results in a 'normal' width web page combined with an inability to zoom in or out.
The view window is tiny such that you can only read two or three words without scrolling. view this URL with iPhone for example:
if you're going to do a mobile site at all make it work or it's worse than no mobile site.
Help get this topic noticed by sharing it on Twitter, Facebook, or email.
Thanks for bringing that to our attention. I checked with someone in our web team about this and was told that they'd try to make some improvements on the mobile view of the OFPS site. You're right, it doesn't currently work well on the iPhone.
O'Reilly Book Support