iPhone / Android Apps & interacting with a website

Does it matter much what your website is programmed in (PHP/.NET/ROR etc)开发者_如何学编程 with regards to having an iPhone or Android app interact with it?

No, it doesn't matter and if you are trying to build a mobile browser based app, then it won't matter. But if that website provides API , then you can create your app however you want.

If you are making use of service calls, you need to bother about the service request/response formats (xml/json...) and its parsing methods... you need not to worry about the language used to implement those services.

No, it does not matter at all.