Desktop web browsers are fast and powerful. Their mobile counterparts, on the other hand, are generally less equipped (although they are speeding up everyday it seems). So it is paramount to remember that mobile-friendly websites need to be simple and efficient.
This can be achieved in several ways. First, when creating a mobile-friendly website, be sure to eliminate, or greatly limit, the number of images that are on the site. The screen resolution for most computer monitors is many times greater than that of a cell phone’s screen. Depending on how the mobile browser works, this might force the user to scroll sideways through pages. In that case, large images will make scrolling a cumbersome task. Otherwise, the browser may shrink the page to the width of the screen, which will create fuzzy or misshaped images.
Catering to mobile and non-mobile crowds is not a hassle. It only requires some awareness and knowledge of the target market (and their behaviors). In the end, both the growing mobile base and website hosts will be much better off because users will be able to access what they desire and hosts will get the viewers they need.