I found this "feature" from a different web site's description of the Honda RC-e:
"The working model also features a removable power source allowing the user to power other products when the bike's not in use."
The first thing that popped into my head was my rechargeable drill. I think the Honda is basically a toy. I just don't see having removable batteries without the bike looking like a MotoCzysz E1pc. (Honey have you seen my motorcycle battery?... I think you left it in the rototiller)
I don't think Honda has a clue when it comes to making green type vehicles. Note the Hybrid Accord, Insight, etc. On the other hand, a high performance street bike by Honda would probably have the same effect on Brammo as the Nissan Leaf did on Aptera.