Word from Eric S. at OSU is that Prospero has been downloaded more than 150 times by folks from more than 10 countries... v1.03 includes several bugfixes and a significant performance improvement. What are you waiting for? :)
to excerpt Eric: "Features of 1.2 include: moved staff module from a Perl codebase to C codebase... This will enable us to make a future release an Ariel "plug-in"; added ability to attach pdf documents to an email message rather than posting them to the Web; added Alphabetical sorting to user list database; fixed bugs in TIFF/PDF conversion and other interface problems; [many] changes in server scripts." check it out yourself at the Prospero page at the Prior Health Sciences Library. Very cool; now I can reimplement it here.
as seen at freshmeat: "This release includes a new class for interactions with PubMed, POD documentation for the BioMail::Mails module, and a range of bug fixes and cosmetic changes." for more see the BioMail site...