I see that you have sent a support ticket with the same question. I will mostly repeat my answer here.
Developing a hybrid mobile app is essentially the same as developing a web single page app. This means that you would consume a REST web service in the same way that a web site does. The easiest way is to use jQuery ajax calls. There are a lot of tutorials and explanations on the web regarding how to make ajax requests and how to handle the data and errors that are received by the web service.
Kendo UI also offers a DataSource widget. It offers an abstraction over CRUD operations and you can connect it to a remote REST web service easily. You can find the documentation here
. It is a powerful tool that offers features like parsing, grouping, sorting etc and you can also connect it to a number of Kendo UI widgets like the Grid, ListView and more.
Let me know if this information is helpful to you and if you have any other questions.