Ah, I can see the limitations...
In the shot earlier showing the snoots with the bear and laptop I was trying out ebay wireless remotes, branded Cactus. They are very cheap (one transmitter and two receivers for 1/2 the price of a single Pocket Wizard) but I found they did not play well with my 430EX - plus random flash fires and about 1 in 5 failures to fire...
...more interesting is the
RadioPopper project - they are designing (and building) wireless remotes that support ETTL...and a Pocket Wizard type device for only $25...