I think this cutter is a great idea! The fact that the handle holds 3 replacement blades is really convenient! This tool reminds me of the Utility knife that we clearanced out that held it's replacement blades inside the knife. Those knifes are amazing! I bought two and use the one at the store ALL THE TIME! Love them..... :)
They'll be coming in soon enough.
In the mean time, there's the Craftsman Professional Accu-Cut.
It uses special blades, that have extras held in one of the handles.
Works wicked good at removing returned "hose ends".
:)