thing is, we have a lot of other products and history to compare to.
....
the history of the mac pro has an access latch...... i highly doubt apple of all companies is going to put something that distinguishing on the outside of their designs simply so users can swap ram..
Like they didn't do on the 27" iMac ?
Apple didn't want to cut holes in the 21.5" iMac cover to get to the RAM. On the 27" they hid it behind the pedestal arm. The laptops they hide the access on the bottom of the machine (normally not seen.)
The modern track record is that Apple designs go for seemless. A latch to get to the
split DIMMs locations versus two hatches in the case is a no brainer. Two hatches is a looser in the current Apple design language.
once you open it, all of the components look very accessible (though the cpu will require an intermediate step to gain access)..
The DIMM and SSD slots are accesible. The rest are not so much. Access to the GPU cards, and internals all look like require taking off the top. This is disassembly of the internal structural infrastructure. That's new.
The power supply is sandwiched between two logic boards ( CPU and I/O port controllers ).
nothing looks harder to get to or more hidden than the previous design..
Current Mac Pro flip two levers pull out CPU+RAM tray.
New Mac Pro remove top and fan connections . Probably also remove I/O card, and power supply to get at screws.
If look here at ( 1:12 in )
http://www.youtube.com/watch?feature=player_detailpage&v=IbWOQWw1wkM#t=72
You'll see that the thermal core has 4 screw holes embedded in it on each of the three sides. The CPU and GPU cards are all physically screwed into the system. No causal pull-out... screwed in.
Those screws are going to be applied from the outside of the thermal core and likely hence on the opposite side of the card ( the one closest to the outer shell. ) The other issue is the grove in the core where likely have to get another coupling heat conduit on the card's inner surface precisely matched.
The problem is that this picture.
http://images.apple.com/mac-pro/images/static/processor.jpg
has already surgically removed both the power supply and connector logic board. If go through the animation transition from "computing" to "processor" here
http://www.apple.com/mac-pro/
you can see these parts 'fade away'.
It seems extremely unlikely that will be able to just pull that CPU+chipset card straight out of its backplane socket just after taking off just the top. There is major disassembly to be done before can get that card out.
It is likely that the thermal core is attached to the bottom backplane so probably no 'workaroud' of detaching the GPUs and pulling whole core and attached CPU card out.
if i never read these forums, i wouldn't have any reason to think twice as to whether or not this thing is at least equal to the past mac pro in terms of upgradability.. the only place i hear that kind of talk is around here but nobody really points out why they're saying it.
There are certainly a group of folks who sell configuration services and/or parts who are kicking up a FUD storm. But optimized, simplified for the open and tinker with more than the SSD and RAM DIMMs? That also is a bit of disconnected from reality.