With so many flip units out there it would be cool if anyone could conduct a shootout. It could be really useful for people who already have adapters and are only looking for an ad on flip unit. The price tags on the brevis, sgpro and letus flip are similar so what should we be looking for here? Sharpness, light loss, compatibility with different adapters...

Check out Phil Blooms stuff, I think he has shot most of the flips.