Research from the University of Albert has found categorical that desktop site are not compatible for mobile handsets. To prove this, Jakob Nielsen's of useit.com lists the faults such as, their small screen size, clumsy navigation and the slow downloading speeds.
"Users must move around the page more, using scrolling to refer to other parts of the content instead of simply glancing at the text, the problem with this is it diverts attention from the problem at hand to the secondary task of locating the required part of the page".
The guidelines stressed in the article point quite clearly to icon based mobile sites being the complete solution with an easy to use interface. A great example of this is goMobi Read more at useit.com