ok, I don't have the time to read all 83 pages, can anyone tell me if there are any differences in the ABI between Harmattan and Fremantle? (i.e. calling conventions, instruction sets etc) And can anyone tell me if there are any known issues regarding libc (or the libraries that come with GCC and get used by stuff) on both platforms that affect using Harmattan binaries (and specifically Harmattan shared libraries) on Fremantle?