Responsive web design (RWD) is an approach to designing websites aimed at providing the user with an optimal experience across a wide range of devices (desktop, tablet, mobile) and screen resolutions. The objective is to provide a layout that minimises resizing, panning and scrolling to ensure that readability and navigation are tailored to the different sized screens from which the website can be accessed.
Yes it should, you can no longer discount mobile or tablet users as the minority, they are not, in fact they are the majority. Responsive design makes sense by providing your users with the optimal user experience irrespective of their device, which can only be a good thing. The mobile version should not be a trimmed down version of the main website. All content featured and functionality should be available for each layout (there is nothing more irritating than seeing something on the desktop site which can’t be accessed via the mobile one). Here at MnM Web Design we continue to set the standards that others in the market follow.