Let's have a look at the final product of our work. On the left side, we have the rendered page in portrait view; and on the right, we have the landscape view:

It is important to test your designs in both orientations. It can be rather embarrassing when someone comes along later and breaks your work by doing nothing more than turning their phone.

This is how it looks on the iPad. There is some matter of debate in the industry as to whether or not the iPad counts as mobile, since it has enough resolution and a large enough screen to view normal desktop sites, especially if viewed in landscape mode. People who advocate the desktop view are forgetting a very important fact. The iPad and all the other tablets, such as Kindle Fire, Nook Color, and Google Nexus devices, are still touch interfaces. While full sites are still perfectly readable, interaction points may still be tiny targets. If it's a touch interface, your customer will be better served by jQuery Mobile.