robinson,
In the meantime, try:
http://www.skweezer.net/skweeze.aspx?q=mobileread.com
Alexander,
it's pretty easy to create an alternate, PDA-friendly template style for this particular forum software. It would need to be installed by a user with admin privileges, though, and the main key is get away from having the user detail on the left margin, going to a style that has just the user title across the top, inline with the message, and no avatars, with only text links on the attachments.
Regards,
Matt