About: http://webisa.webdatacommons.org/252301771

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The concept is called ???Persistent Overlay??? and it aims to provide users with quick access to songs, files, photos and other data through an always persistent, accessible UI.
http://www.w3.org/ns/prov#wasQuotedFrom	iphoneroot.com