Have you heard about RadioPopper?
It is a unique radio trigger system for use with your slave flashes and triggers, strobist–style, but with the unique capability of light metering through TTL. Created by wedding and portrait photographer Kevin King, it is slated for release sometime next year according to their press release (pdf).
With the look of things, this kit should be significantly better than the Cactus Radio Triggers I just acquired, considering it will be priced close to the industry–standard Pocket Wizards. But can it steal some of the Pocket Wizard’s market?