Cortana on iOS?

While still not officially confirmed by Microsoft, Reuters notes that a Cortana app for iOS and Android could extend the program's reach beyond the company's smaller share of the smartphone business, and perhaps win over converts not impressed with Siri's functionality.

I've heard a lot of positive feedback on Cortana and its capabilities. I'd be interested in seeing it come to iOS.

Microsoft's Digital Assistant Cortana May Be Heading to iOS and Android - Mac Rumors