Cisco to develop its own mobile handhelds

Ok, today i was wondering about Cisco developing its own handhelds to compete against mobile giants like Nokia, Siemens and a few others. Microsoft has its own handheld and OS, Apple is about to launch iphone, but what if Cisco starts developing its own handhelds. Personally, i think they have a huge edge in the handheld market. Cisco is the product leader in networking and if they really do develop handhelds, it will be interesting to see many cutting edge features incorporated to the existing technology. Let me know what you think.
Just a thought.