This would allow different Application to store their Downloaded Data in A special Memory Part of the iPhone so it would be possible to access this Datas as well when in a low coverage Area, like Southamerica, or Russia, or even when no Covarage at all can be provided, like in a plane, but still it is possible to access the Data beforehand updated and downloaded, as well it would be nice to be able to store some attachement received by e-mail on this special "Memory Tank"
Even my 3 year old phone can do this.
Pretty obvious.