PixelServed is not related with webdesign or responsive webdesign. Is a simple tool that I've build for myself to prototype UI designs created with Xara and preview (mirror) them on a device (to simply check the design). This is similar with the Photoshop CC new option "Device Preview".

PixelServed is a free app, is not a commercial product, is just a simple utility to make things simple for those who use Xara for UI design.