I happened to be at Lowe's yesterday buying micro-sprinkler supplies, and they do have a type of tubing with internal emitters like that. The Mister Landscaper brand that Lowe's carry is the home version of Maxi-Jet brand used by professionals. They have great quality stuff. Home Depot is carrying a Rain Bird line now that is absolute junk!
http://www.lowes.com/pd_15888-...
No idea if the emitters are those same awesome style that he describes on the site, though. That sounds like a truly excellent system!
