Accounting Application for Mac OS X

Develop and design an application named Invoice-app for Mac OS X. The Invoice-app is similar to Checkout app and Accounts app (in accounting parts). The most feature would merged to create Invoice-app, such as inventory (stock) that idea similar to Checkout app, checking system, etc. which are written in following. In general this application can be use for shops, retail, store, services and so on. The application based on accounting system with very well interface and interact to enduser. Remember 99% of users of Invoice-app application doesn’t have any knowledge about accounting. We are looking for a Mac programmer good knowledge of accounting and programming on Mac and SQL. 1- I need a simple clean application alike: [login to view URL] 2- Based on SQL 3- the based of Accounts application is english ways I need to customize in Persian. (About Persian don't worry I'm programmer and I will sort the Persian issue) 4- Cheque feature 5- Stock items feature 6- Date based of Persian Calendar and Gregorian Calendar 7- Printable 8- connectable to barcode reader 9- possible to extend the application such as web, sync with iPhone/iPad 10- possible to port it to windows if needed I need full source code. *** PLEASE CHECK ATTACHMENT FILES ***