Siri's integration into iMessage means it will be able to offer suggestions relevant to the ongoing conversation, such as where to dine out, how to get there, and one-step Uber taxi booking.
Yeah. And I don't think it should be so hard to implement. Before Siri we had basic voice commands, we are only asking to have them back offline, or when you are online with a weak signal and Siri takes forever to send the command to the server.
Stuff like call X, play a song, remind me to do something.