(raspberry pi 3, using the image file, retropie.org.uk/download/ ... you have to enable ssh or whatever before you are able to ftp, after writing the image file to mirco SD. I guess he is referring to that ... it does have better snes emulation than the xbox and vita ... I think the vita can do better then it does now though, but its a good device to have, its very cheap to own)
(SD2VITA also suggests using an image file to write to micro sd to blank out part of the format table, so their similar, not exactly the same)