Thanks, that link was really helpful, most of the ref was about Maemo 4.1, but what the hey, I was honestly interested in what specific parts of Maemo 5 were closed. I understand why companies have closed stuff, I work for Schlumberger D&M, aiming for a job in R&D, so the idea of closed source isn't a new one for me! Also I wasn't having a go, Nokia have the right to protect their own source and ideas/code, I was honestly interested in why their is such a debate over this, and was going to say, even if we had the source would it make much of a difference. Don't be so quick to say "those who don't know or understand what closed is", I was honestly interested in specifics, if no-one can be bothered to answer then fine, but just say that or point me to a decent ref point where I can read for myself. Thanks.