Hi kkito. Thanks for your interest in improving gaming on Maemo. Please read and follow the Brainstorm instructions so that your Brainstorm can be considered. You might also consider giving some specific examples that don't work now that would with HW OpenAL. While i'm familiar with the library, i'm not aware of situations where the absence of it has been a problem. Are you?
There's not even interest in an OpenAL HW implementation for desktop GNU/Linux (not even Creative card owners seem to have complained!), and the DSP is not used in the N900 for audio, so this is pretty much.. impossible.