Want to explain why I'd prefer primaries as opposed to rechargeables in the Raw:
I carry a decent looking shoulder-carry case with me wherever I go, even to a formal function, so I am able to comfortably EDC slightly larger lights of 2x123 or 3x123 size. People like me don't need very small lights like the Raw for frequent use.
However, I would like a small back-up and I think the size of the Raw is just perfect. However, rechargeables self-discharge and degrade over time, especially if stored at full charge, so I would prefer a primary-powered option with long-shelf life.
The size and appearance of the Raw also makes it a very nice gift light but again, most people may not use it often and may only bring it out in an emergency so rechargeables are again not suitable, not to mention the dangers of li-ion unknown to most casual users and their lack of common availability. Primaries with their long shelf-live and low self-discharge would make the Raw the perfect gift light for the average user.
When the CR2 Raw comes out, I'll be getting at least one as back-up and another for my significant other.