Windows Mobile-based Pocket PCs (Cont.)
A Pocket PC device is a Windows Mobile-based PDA with a custom shell and a set of customized applications written by Microsoft but sold by OEMs such as Siemens (SX66), HP (iPAQ h6340) and Casio (Cassiopeia E115), and others.
Pocket PC applications must conform to a rather strict set of requirements that enforce the look and feel of the application.