iDownloadblog just demoed a tweak with title GhostSiri, which will allow you to invoke Siri without being subjected to the Siri UI. It’s currently a concept tweak in the very early stages of development, but looks quite potential.
Take a look at the video demo…
The main problem with GhostSiri in its current form, is that there’s no way to handle graphical snippets from Wolfram Alpha and the like. Since Siri doesn’t appear at all, there’s no means to display the snippets normally displayed via the Siri interface.
According to the developer it appears that he is taking some measures to display the snippets by other means. Apparently there will be a settings panel that will allow you to decide what you want to display, and what you want to keep hidden.
What do you think about the concept?\