Kevin Schroeder, in his move towards doing some mobile development, has a new post to his blog about why he's still going to stick with PHP for the backend of this new development work.

I do like working with client/server-like architectures and so I intend to be building apps that have a fair amount of server-side processing to back it up. More details on that to come in the next few months. [...] I have decided that, for the time being, to use PhoneGap for my frontend development. [...] So the question was what to use for the backend development and, to nobody’s surprise I presume, PHP is my chosen way to go.

Some of his reasons for the choice include:

• PHP is stupid easy to scale
• It is tied to the web
• (Available) Frameworks
• Tons of blogs
• It integrates with everything

Check out the post for more of his reasons.