What about this?
http://pipes.deri.org/
"DERI Pipes: Open Source, Extendable, Embeddable Web Data Mashups
Inspired by Yahoo's Pipes, DERI Pipes is an engine and graphical environment for general Web Data transformations and Mashup.
Supports RDF, XML, Microformats, JSON and binary streams.
Use it as a "Web Pipe" or embedded in your applications
Works as a mashup command Line tool
Supports SPARQL, XQUERY, Several scripting languages.
Extend it as needed
DERI Pipes, in general, produce as an output streams of data (e.g. XML, RDF,JSON) that can be used by applications. However, when invoked by a normal browser, they provide a end user GUI for the user to enter parameter values and browse the results (see the examples below) ."