I agree with 'opnt'. I developed one application thus far (Manufacturing Tool Crib) and am in the process of developing another for Inventory, both using Symbol MC9060 handhelds running PocketPC. I did find it was easier than I thought it would be. This site as well as googling pocketpc and .net, gave me alot of information. The apps I developed did not have to sync with anything though. They connect to the network wirelessly and interact with SQL Server in real time.