Dude, this rocks! I've been wanting someone to develop something like Launchy (http://www.launchy.net/
) for Windows Mobile, this is a really nice first step.
I'm guessing it would be much more difficult to have the application also search and suggest documents, files, bookmarked web pages, and settings screens based on the text entry right?
What about making this a stand alone app that could be triggered without navigating to the today screen? For example, if I could launch this app by mapping it to a hardware button and then begin typing to launch any app, setting, document, web page, etc on my device it would be pretty awesome.