Google could have, if they hadn't totally thrown user privacy out the window with G+.
I question if

pple already has the capability, if they choose to finally implement it. Between iMessage, Photostream,

Pay, Apps, etc... The only thing really missing from iOS is a status update, which could easily be thrown into the exiting "iCloud Photo Sharing: Activity" area, along with pulling "Activity" out of Photos into a separate app. iTivity? AppleTivity? AppleSpace? Perhars just a new service called "iCloud Sharing", which will allow you to share just text "status" type message and any content from any app in iOS.