Infopop have brought WWWThreads. The main coder for WWWThreads basicaly couldn't keep the ship afloat by himself anymore and needed help.
The BAD NEWS..... They will discontinue the Perl version. They are concentrating their efforts on the PHP version. Ugh Ugh Ugh Ugh!!!!
The new product will be called UBBThreads. The differences now with Infopop products are that UBBoard is flat-file based and php and it's crap(!) and the UBBThreads will be PHP/MySQL based and is a threaded message board (hence the name - where uuboard is not).
Here's the email I got about it (a while back):
My $0.02.... go for the new, but very powerful and steady board from Gossamer Threads.... http://www.gossamer-threads.com. Pricey, but an outstanding board. Download it free of charge for 30 days. la di la. I gotta stop plugging at some point