Facebook ditches Credits; Zynga Slots hits iPhone charts; IGT slot goes social
Facebook's plan to ditch Credits applauded by analysts; Zynga Slots debuts on iPhone app charts; IGT launches Da Vinci Diamonds social slot
Zynga Slots debuts on iOS; PopCap mobile survey shows social game decline
Zynga Slots released for Apple iOS mobile devices; PopCap games third annual mobile games survey shows decrease in social game use
