Fyodor Kupolov has released a 1.0 beta of his Scriptella ETL framework. I downloaded it and integrated it into Ledgerscape, so far so good.

I blogged about Scriptella a while ago. It's a simple and elegant framework for declaratively manipulating result-set style data (typically but not necessarily from a database). Fyodor also seems to have updated the reference section with some nice diagrams that explain the concepts very clearly.