....The fact is that the internet is permeated with Flash, whether it SHOULD be or not. So knowing that a huge number of sites use Flash, my alternatives are to fight the whole of the internet, one forum at a time, or...install a plug-in and deal with it. For me, the choice is easy. Apple has chosen option A, and I honestly hope they win. The problem is that until a winner is selected, there are millions of iPhone users, myself included, who are incapable of viewing content on MOST websites.
Finally, some sanity....
I should also point out, that if Flash is replaced for video in a few years, it will not be Apple that benefits the most, but Microsoft, with its Silverlight. So, be careful what you wish for.
Anyway, some here seem willing to cut off their nose, to spite their face: they'd rather their iPhone is left as the only mobile platform without support for one of the most common formats on the web.
BTW, there are a number of sources mentioning "80%" for the portion of web video viewed, and over 95% for Flash Player penetration. Here is just one source example:
http://www.nytimes.com/2009/04/20/technology/20adobe.html?_r=1