The Reflex Mag Pouch has some of the most unique functionality that I have seen in a magazine pouch in a long time. Its design looks to make both accessing a magazine and stowing a partial magazine extremely easy. It has an internal mechanism that ensures that there is always a magazine in the optimal position for the user to access.
I think that people may be skeptical of the mechanism, but if it proves to durable, these pouches have some very serious merit. Check out RegulationTactical.com.