Not sure what you mean. From my iP4S? Yes.
I did go into SBSettings to More>Mobile Substrate Addons> and disabled "SpireHooks" and "SpireInjector" and she will at least respond to me now, but
she says she can't take any requests right now.

Still working on it. Even though Siri does come up I am not getting the mic on the keyboard in Texts and Email, which is what I really wanted.
Nor FYI can I get it going on the iPad 1. There is an AssistantConnect tweak in Cydia specifically for the iPads, but it hasn't let me download it yet?!

Edit: If I could dictate on the iPad I would be on happy camper.