410294 C# SQL SERVER 2008 development

Hi to All C# sql server 2008 developers, Currently have a development to be carried out which would need to be a PDA solution which i have developed 80precent and need to complete the remaining PDA solution then develop the desktop application which is based on the PDA solution. In an overview the user on pda will place order then send infomration to the desktop app, then will recive the order then once food is ready then the pda will recive a notificaiton then once deliveried then pda user will confirm and the desktop user will be aware of this. the manager will have access to the system to develop reports. for the desktop there are 2 views manager and kitchen.