That the comma voice was not present in existing units that went to factory and the long boot up time was because of the decompression of nav data loading. That thanks to it being in ram, its a lot slower vs the cd rom. Also, the sluggishness of the screens were, well who knows.
I saw that another member took apart his F series and he basicaly explained that it's like a small computer...that being said, and how you brought up the RAM (i dont know what RAM is but i'll assume it has something to do with the processing speed), is it possible to add more RAM? it would seem that the sluggishness merely comes from the unit just being slow overall..
im sorry if this has been brought up already (i havent been reading up on the newest hacks since im not computer-savvy), and for posting it here out of topic, but it just crossed my mind when you mentioned it.