I tried copying a file over when i was connected via remote play. Wasn't thinking straight and thought it was working, then i realised it was copying it to the ps3 as that is what i was effectively using :/
It really would round off what is already an exceptional package. I'd like something along the lines of Buzz Player on iPad which streams all video formats and also quickly allows uploading onto the device for when you're away from your router.
Not via DNLA but my NAS drive streams when i connect to PS3 via Remote Play. Not ideal but better than nothing. Hopefully they'll give us DNLA access in an update.
Oh, and any way to stream videos across a network yet? What video formats can Vita cope with?