nice idea, certainly nothign i've ever heard of. if you'd consider building your own, there are some acces modules you might like...
http://www.blackperl.com/Perl-RPM/Database.html naturally the way you imply you'd just need some sort of method of inserting data into a generic sql database, then you're home free...
you know, this has actually got me thinking now... maybe i'll have a go myself... maybe the thought will pass in a few minutes though!