<Hypothetical situation>

Someone somehow manages to develop what you ask. A user decides to bring his N900 to a concert and wants to record some of it. The user records about two minutes and then the N900 is left unusable for quite a while.

</Hypothetical Situation>

I don't know how many times I can tell you this, It is not as easy as you make it out to be. If it was, we would most probably already have it. Obviously you don't understand that much about development. Nobody is interested because of the difficulty and lack of reward.