It's a good project; thankfully there is still the BeOS book within it so you can write applications on it using the tidy BeOS API. I think there are GCC 2 and GCC 4 compatibility issues (attempting to maintain binary compatibility won't work with GCC 4), and they have got a package management system which some feel was too Linux-like, but it's an interesting project and can breathe life into an old computer somewhere.
Speedy too!