So I really like the layout feature in mobile and application.
My main question is if you have someone hitting your website, do you first check if it's a
 mobile device and then redirect them to another page, or is it ok to put everything on one page with the layout options:
<div data-role="layout" data-id="layout" data-platform="ios">

would I then use data-platform default for the web.
Is it ok to put this in a web page?
var app = new kendo.mobile.Application(document.body);

I'm just trying to re-use as much code as possible.
Maybe it's just best to put the viewmodels for kendo UI MVVM in .js files and then re-use those and make seperate web pages for mobile and web.

Hello Dan,

the mobile application and widgets in general are built and tested for mobile devices. While mostly functional in most modern desktop browsers, they are not tested and may fail in old IE browsers.

The recommended approach in this case would be your last statement: Re-use the models and view models, and serve different views depending on the device. You may use our SPA framework for that purpose; it integrates nicely with the MVVM concept. 

Regards,
Petyo
Telerik