Buffered Bitmap Question(s)

Good evening, all. I have started digging into buffered bitmaps as implemented by ConnectIQ/MonkeyC. Am I correct in my understanding that buffered bitmaps (generally speaking) are good for creating a "frame" before it's needed, so that (in gaming) it would reduce flicker? The benefit for us developing Garmin apps would be for 1Hz processing (to offload the design of a section of screen prior to the 30ms timer activating). Am I correct? Are there other benefits? Thanks, again, for all the support!