The bigger PHP gets, the more it will need that corporate solution to bring it to the big time. It could very easily be used, I believe, in any application that ASP.NET could be - it's biggest hurdle is that you don't have to spend money to use it, ironically. A large business is going to go where they can spend money, simply because a lot of heads think that the amount of money you spend is directly relational to the quality of product you receive, which is only true some of the time. This is one (of the various) reason(s) why Microsoft still retains a large amount of control. A CEO who knows nothing of the technology he is using will almost definitely go where somebody else in a similar suit is going to give him help.

So while PHP can stand up to a lot of it's competition, in many ways probably far surpass it, it will not become as big as it can be without that kind of a background becoming a reality first. Sounds like a fairly good business plan for anybody with the money to invest, actually - the number of jobs, despite this weakness, IS growing. Rapidly. In Vegas if you look at any technology related employment advertisement, PHP programmers are being asked for about 5-1 against the ASP programmers. Nearly the same in Denver where I'm moving.
-m