Does anyone on this thread seriously thing that Nokia doesn't realize that the members of Maemo.org would like to know whether the N900 will be upgradable to the next OS (whatever it's name and/or architecture)? Does anyone on this thread seriously think that if Nokia knew the answer was "yes" they wouldn't already have said it? Nokia clearly isn't willing to commit to backwards compatibility at this point. No "open letter" is going to change this.