Yes, Nermal I think you have misunderstood what we mean by 'Integrated'.
Integrated Graphic Chip-sets usually describes a GPU which uses the CPU and System Memory. That is, a machine who's IGC is set to 128mb will take 128 off the system, thus making the system slower. This is the case with many many budget windows machines, while Apple has always prided themselves by using a dedicated graphics chip.
This graphics chip is indeed "integrated" as in its a part of the logic board on all but the PowerMac, but it has it's own memory and processing unit, thus making it as if it was on its own AGP/PCI bus. Apple have probably done this to save space - the iMac and eMac are too oddly shaped (in a good way tho!) to accommodate AGP slots, whereas a more conventional "tower" (i.e. the PowerMac) has plenty of room.
In my opinion Apple has gone back on their word many times now and I wouldn't be at all surprised if they used an Integrated chipset. Like Morn said, if they reduce the price of the Mini by a sizable amount (relative to its already inexpensive price) then I'd welcome it - some integrated chipsets aren't all that bad any more. However, the iMac, iBook, PowerBook should never be given one as, for a start, they become quickly obsolete and if you check out a PC you'll notice how many "critical updates' there are for Integrated Chips which are accessing the memory incorrectly!. Personally I like being able to brag about having a dedicated graphics chip in my iBook.
Apple would also be a fool by using integrated graphics because they have been aiming for the last few years to move the graphics stuff to the graphics card, "in order to free up processor cycles" (e.g. Exposé or Core Image). Going back on this would be quite a big feat (a lot of useless code in OS X would be left) and people would get further ticked off.