Just wanted to give a preview peek of my upcoming iOS/Android web app for chatting in the shoutbox of a UBB.threads forum.
It currently works pretty OK for iPhone/iPad, but Android support is still a bit shaky.
You can see it here, though chatting is mainly in Swedish:
http://www.rollspel.nu/forum/touchat/Running it will require an extra script added to the UBB.threads installation, as well as the web app files. It should not require any changes, IIRC.