Phonegap Mobile app. for an e-commece website based on opencart

Web-site on opencart with additional modules , the members (sellers(vendors) and customers) , I need a mobile app. using phonegap . it should fully work but the most important options to work : 1. Registeration : The user must verify the phone number . 2. The members can login to there accounts so they can use the back-end options . 3. They can add / modify / remove products . 4. In the messages , they can read / write / send . 5. In the blog they can view / post to built-in blog . 6. Visitors can view/order products , view blogs , they can use the front-end properly . --------------------------------------------- some options needs customization : 7. Visitors will chat the sellers (vendors) directly by clicking "ask about the product" button in the product page . (if the customer want to ask about a product then he has the ability to add an image of a product to the conversation window , the customer can add the image by clicking on a button " ask about the product ". customers may need to ask about more than one product, so they can add them to ask list then ask about it later each as described in 3rd point above.) 8. Using the mobile cam for simple addition of the product-image via "take a picture" then "upload". --------------------------------------------- 9. The app. work on iphone-android-lackberry-windowsphone & accepted in all stores especially apple store . 10. Clean source code .