"I sincerely hope this platform becomes a success."
As a (sort-of former) N900 owner, I really hope it doesn't. There is maybe the potential for one new entrant to the phone OS market to bring a system with the sort of practical freedoms that would enable novel and potentially disruptive things to be done with it, but this is not that system. The N900 nearly was, but Nokia took all the potential and threw it away. Now, anyone prepared to work within the constraints of a basically free-ish OS, but with closed drivers and a closed UI layer, can get all that on Android and also have a massive app market full of useful stuff.
What I want in a new mobile OS is for someone to succeed by being better, not by trying to pull the same crap as everyone else with some different branding on it.