 Unlike the iPhone and iPod Touch's built-in applications, which work in 3 orientations (portrait, landscape-left and landscape-right), the iPad's built-in applications support screen rotation in all four orientations, including upside-down.Consequently, the device has no intrinsic "native" orientation; only the relative position of the home button changes.The iPad was equipped with 16 GB (14.9 GiB), 32 GB (29.8 GiB), or 64 GB (59.6 GiB) of solid-state (flash) storage for program and data storage.