App for iphone/BB/ Android and Website

I would like to build a website with the following features •Client and Customer login section •Back office for monitoring system and accounts •Ability to activate/deactivate accounts •Automated response system for orders by text or email •Tools for processing payments •Pools to allow clients to select customer requests •Queuing system for requests I would also like an app for the website functionality that would be integrated to various phones mainly iphone, blackberry and android. Programmer should have the experience of automated responses between systems (i.e. website, database and app). I would also like a back office process to monitor payments, registration, customer requests). Experience of incorporating GPS technology would also be needed for app.