Makita XSH01Z 36-Volt 7-1/4-Inch Circular Saw An AC Replacement?

We all know how handy cordless circular saws can be, but we also know that they are usually lacking when it comes to overall power and battery run-time. Makita, continuing to expand their new 2x 18-volt (36V) system, showcased their new 2x Cordless 7-1/4" Circular Saw (XSH01Z) that I am sure addresses some of the cordless circular saw shortcomings that we have all come to know and dislike.

There doesn't seem to be a whole lot of information on the new saw, which Makita says will be available Winter 2014. Makita is touting the XSH01Z as a "true AC tool substitute" which sets my expectations pretty high. A few photos from Makita's FB page show that it can cut thought 5 sheets of OSB and has a max cutting depth of 2-5/8". At 36-volt I don't doubt that the power is there, but I am still wondering what kind of battery life we can expect.

Is this tool going to be on your shopping list?