> The MacBook Pro with retina display has non-upgradable RAM, that bothered
me even before I cared about free software.
Yeah, that's also the case of the "Pixel", which has 4GB RAM onboard. It's
because the latest trend of integrating as much as posible into one piece to
save production costs and in this case space, so the device remain
small/thin.
> I would swap out the SSD for a larger hard drive, if that is possible.
Yes, but it does not contain the classic 2.5" HDD sized SSD's, but a mSATA
card, like this:
http://www.theinquirer.net/IMG/705/224705/adata-msata-540x334.jpg?1340105535
> The computer contains 2 GB of RAM, if it is the HP Pavilion 14 Chromebook.
You said "4 GB RAM limit" but does not specified which (upper or bottom).