How To Optimize Your Website for Mobile Viewing [INFOGRAPHIC]
For mobile devices the key is to keep your visual layout simple, because at the end of the day people are on the go and need to access information quickly.
If you are going to commit to mobile, consider the amount of data that you will be sending to the device. Data can be expensive on 3G networks so try and design around that. For instance, if you are sending detailed information consider different data formats such as CSV vs JSON vs SOAP/XML.