Web Service using Microsoft's Sync Framework, simple iOS and windows form app also

Needing a unidirectional (upload only) database sync web service using Microsoft's Sync Framework. This web service needs to be absorbed by a simple windows form application and an iOS application. Both of these will also need to be developed. The windows form and iOS application will just be a simple form where data is entered, when submitted, the data will be stored on a client side sql server ce database and sync'd via the web service. Other details: Should be written using C# w/ a SQL Server 2008 backend.