I agree! The fcamera interface would just tell there is some photos (HDR) which have been delayed and need to be processed in some later time.

Then command to finalize previously delayed works would be there somewhere. Manual command would be fine if automatic processing option is turned off, because the system cannot know if someone is about to fully charge the battery or just quickly get some extra juice on the road when the charger gets connected.

With HDR-photos, self timer with setable delay time is a MUST have feature. (Yes I have a tripod for N900.)