hmm, I'm inclined to suggest this a a bug/defect with maemo, from my point of view I'm requesting a notification of a certain style from the OS, I presumed that maemo would handle whether you currently have something like vibration switched off or not. I surely can't be expected to perform some kind of check locally to witter and then just be trusted to adhere to it? That would make no sense at all.

I guess I'll try to find out if this is a bug, or just a stupid bit of design