Well you can go demand it find a developer and if you hire him well, he'll do it for you, but:

1920x1280 is beyond HD and no movies standard or device exists for that thing (unless you intend to make a movie yourself).

Having a HD 1080p movie on your phone is useless since it will take up half of N900's memory

Light - is already possible, but as tested, useless further than 2 meters.

Face detection - this device does not target the multimedia segment, so no face detection for you. (find a skilled dev and hire him, with N900 the possibilities are only limited by your coding skills)


And as a last thing, you are in no position to demand anything, this forum serves for contribution, ideas and development.

If you're not happy with N900 go demand to nokia, this ain't a nokia forum and nokia ain't written on it!