This post is a month old but I didn't know about it until Mark McKeown mentioned it yesterday during dinner (yes, we are still in Berlin). Mark announced a new release of OGSI::Lite that implements part of the WSRF suite of specifications. OGSI::Lite is a toolkit for building Grid applications written in Perl. You should check it out. Here's a document that discusses the positive experiences with OGSI::Lite.

Thanks Mark!