I got my 32GB today, went to the Play store, and started installing games.
I noticed some were erroring out with "Couldn't install on USB storage or SD card."
I'm using a 128GB Samsung (bought from newegg) Micro SD card that is brand new and was formatted Fat32 before inserting.
When I look at storage settings, it sees it as 120GB. Also, the apps settings don't have a button for Move to SD Card.
In storage settings, I picked Erase SD card to see if that would reformat it, in case that was an issue. It unmounted, formatted, and said "Unfortunately, the process com.android.systemui has stopped." When I clicked OK, it just came back. The only thing I could do was power it off, since nothing else would respond.
Powering back up seemed to make it not miss a beat. It still shows the SD Card in storage settings as 120GB.
When I connect a USB cable to my Windows PC, it sees the 32 GB internal drive as "SD Card". The microSD card is also seen as "SD Card" and 119GB free of 119GB.
Any thoughts on how I can make it use it as /sdcard? It looks like the onboard 32GB may have a directory already in use.update:
Thank you, Skelton. That makes perfect sense. I'll be less greedy about having ALL my games on the device.