Browsing the Web on mobile phones has finally hit the mass. The visualization of websites on latest mobile phone models comes close to what we are used from desktop computers. Tailoring websites for mobile phones seems to be not mandatory anymore. But still the small display size limits the user experience when browsing the web on these devices. As a result although access to the full web is reasonably well working a tendency to providing additional versions of mobile optimized versions of websites can be observed. This paper presents a multidimensional study where usage scenarios as well as the usability of mobile tailored compared to full websites were investigated. The results show clearly that users prefer and effectively do benefit from mobile optimized versions. However content providers sometimes do not understand the mobile scenarios in which their sites are used and consequently begin optimizing the functionality at the wrong end. Categories and Subject Descriptors D.3.3 [Inf...