Should I bother dropping my firmware dump in here???
If you have a firmware version that hasn't been dumped, then please post a dump. It will help in the future if anyone starts working on that camera. If the same firmware version for your camera has already been posted, then there's no need.
anyone working on something to port the sx240 and/or sx260??
There is a port in progress for the sx260, see this thread http://chdk.setepontos.com/index.php?topic=7889.0
(you might want to start at the end)
An sx260 port is only good for the sx260, if you have an sx240 then it won't help you.
Based on the lack of activity in this thread, there doesn't appear to be anyone working on sx240 right now. As explained in the FAQ waterwingz linked, there is no plan for ports, they are almost all done by individuals who have the camera in question and the required programming skills.