Kendo UI Mobile widgets can be used for building mobile versions of the website. I would suggest you to take a look of http://demos.kendoui.com
from a mobile device, so you can see how the controls will look in a native browser. In general Bootstrap will not be needed for the mobile version, but it all really depends on the project. I would suggest you to start by examining the demos section of the website using mobile device, as I am sure this will answer most of your questions.
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