<A target="_blank" href="http://www.zdnet.com/blog/microsoft/microsoft-adds-android-and-chrome-os-oem-wistron-to-its-patent-protection-roster/9928">If you want to use Android or Chrome OS on a device, you may need to buy licenses</A> from Microsoft. The latest to agree to pay for use of the patents is Wistron. Barnes & Noble is still fighting Microsoft's claims.