Most of the information is only common knowledge to devs because someone has come to these forums and mentioned it already.
And in most cases, there is no difference between the status of the iPod version and the iRiver version, etc. When a bug affects just one, it's usually gone or reverted within a day or two, and archived builds are available.
It seems like you're asking a developer to spend extra development time constantly updating a page as to what is or is not working as it may change frequently, which in the end is a lot of wasted time. You are running test software, if you don't want to risk bugs, don't update, it's fairly simple.
If you experience a bug, just search the forums and flyspray to see if it's been reported.
As well, being a wiki, users are absolutely free to maintain a "IpodCurrentWorkingCondition" page, which would then keep a developer from having to spend time constantly updating it.
As for the new bootloader, as long as your bootloader works with builds after the coprocessor patch, it's fine.