So sad to see Pipes go! I absolutely love Pipes and was just raving about it to a coworker this week. Terrific UI and a fantastic idea. When development fizzled out, I tried to find another service as a replacement, but everything I've tried has fallen short. I'm really disappointed as Pipes is definitely one of the best ideas that never caught on line it should. Popfly, while short lived, had the advantage of being able to modify the code behind, but it didn't come close to the fantastic ease of use and tremendous potential for reuse.