Android sfa mokup

We have to mukup a project based on our customer specific. The company have almost 40 selling agent around the world. Every agent has the possibility to save an order and to send the order to main server to be sent to final customer. We need a stand-alone andorid app that read some csv file as soon as possible once a day to update his database and send orders sent by company agent as soon as possible (depending on android 3G connection). The company agent even without connection or data updated can place an order that will be sent as the connection will be disponible. Andorid device target are samsung tab2 10.1 inch, with andorid 4.x In attached you can find my prototipe wrote with prototiper free edition (justinmind dot com - look on web to get it). Inside prototype a lot of specification are wrote. You can find also two excel files, one for final customer details and one for articles to sell with their specific to be grouped. Please valutate very well prototype that is not completed, we accept suggestion and we are looking for precision and good graphics.