Regarding deleted data: there are clearly two concepts of 'deleted' a). deleted in terms of the application/user interface (ie, it is no longer visible) and b). deleted in terms of physical removal from all permenant storage. Clicking on a button labelled "delete" does not necesarily imply one or the other.

For example, if I "delete" an email in google it is not deleted, it goes to my 'trash/bin' folder - is this also a breach of the law? and are we sure which definition the "Delete Forever" button is using?

...I suppose its up to the terms and conditions to define this.