Build a front-end App suitable for deployment on desktop, iPad, Android Tablets and Windows Surface. It's primarily a CRM style data application so doesn't need any particular device specific features, other than maybe geo-location. Current plan is to develop this with PhoneGap.
The app must work offline so plan is to have a local database with background sync to the main web database, however this is not for initial consideration by yourselves. Really looking for someone to build out the initial app to work off the local database as a first project.
This may lead to additional work on the synchronisation aspect and potentially on the main admin site, but initially at least I will be developing the PHP site.