Startup problems..sometimes i've had to re boot first.
When it does..there's no saying if it's going to thumbnail all files in the folder.
(see "?" thumbnails in pic below)..It can take time to build up all the thumbnails.
To reach the edit-mode ..access is from the three little dots at the bottom menu...edit is transferred to the resident App: "Gallery"
With some basic edit functions...
Raw files do not show full exif data on lens-info..it does in the jpgs that i've exported earlier in LR. edited file on the display...
Edited file from Rawdroid..did some light-fill ..Picture was very dark and shadowy in both #4 and 5...both files were pre-exported and reduced JPG's.
6. This is just a crop that i did.
All those colors stars and tagging (pen) on the bottom right of the screen are partly active..probably awaiting some more development.
Hangs the System very often..but if you are stuck with out a computer in the middle of nowhere..this thing can be made to do some little bit of work at the least.
My initial thought was to just be able to review the files on the card in a larger than in-camera screen to check for non-keepers.
Files stored on the in-built memory / Micro-SD card in the slot are not uncomfortable to access..(fast enough).
**** what i'm not sure of is if the editing is done from the raw-data or the embedded jpg**** will check it out with an oly art-filter file.
Bottom-line..It's not mature enough for flawless field use..too many hiccups.