A Comparison of Methods for Building Mobile-Optimized Websites
This article looks at the performance difference between responsive web design and a mobile specific website.
There’s a debate over which technique of creating mobile-ready websites is the best.
Google advocates creating responsive web designs, while Jakob Nielsen, a renowned usability consultant, endorses the creation of dedicated mobile sites (but he was subsequently slammed by some web designers).
An excerpt from A Comparison of Methods for Building Mobile-Optimized Websites