Felix Mak:

The prevailing wisdom in web has been to design for the most common screen resolution that most people use and at the time of writing, it has been 1024 x 768 for quite a few years now. However, there is a relatively new and important factor that designers need to account for and that is the rise and prevelance of hand held devices. The popularity of the Android device as well as iOS (Apple’s operating system for most all things they manufacture — starting with the letter ‘i’) and the slow rise of Windows 7 devices, cannot be ignored and must be accounted for. These devices can be phone sized or tablet sized devices and their design size needs to be included in our new ‘guidebook’.