The NTP project has come into the prerelease stage. Becasue of the size of the source it was no longer possible to use BBC-BASIC for that. I went to beebasm. I have send the source to roland so perhaps you can update the firmware in the near future with the *UPDATE command. Untill then you need SWRAM and a way to get the binary into SW-RAM. Pleaae note the source not optimised for speed and size and still a bit under development.