I was wowed by Microsoft PowerShell (originally called Monad) when it first appeared, and have stayed wowed since. I wondered a couple of yeas ago whether someone would hook it up to Yahoo! Pipes; now I'm wondering about integration with Resty, a utility that lets you connect to REST web services from a standard Unix pipe. Distributed dataflow networks that pass objects around? That would be cool... Later: a couple of people have pointed me at YQL Execute---another piece of the emerging puzzle.