Safari is not everyone's web browser. I'm not going to duplicate why it's here but it has more to do with giving iPhone developers a way to test if their web app or site will work with the iPhone.
Many missed that detail.
Is it my imagination or does the new CNN web page seem to take forever to load? The old CNN site loaded fairly quickly as I recall. The new site sometimes refuses to load at all for me. I thought this was maybe a problem with my home server but I'm at a coffee shop right now and experiencing the same delays in load time on their wifi.