Is Siri really more than a little bit of sugarcoating on top of stuff others have been doing for years (Google, Wolfram Alpha)? I suspect it is doing ok for some tasks (calendar), but that is about it. For example on Android people have been calling contacts by saying their names for a quite a while already.
Android user here who frequently uses the voice commands. The primary differences I see between what we have and what Siri offers are: - More built-in app integration (like GPS). "Remind me to call Jennifer when I leave work" wouldn't compute. The Wolfram Alpha integration is also a nice touch. - Improved contextual awareness. "Is it going to rain today?" or "I'm in the mood for Italian" don't work for me. I have to…
Also I suppose it is kind of a "desktop search" for the mobile phone. Google can not search your contacts and calendar (it could, but the Google search is not really tied into it yet, I suppose).