I've been hoping they would make something like this. They should call it the PS Stream Controller and market it as a PS5 accessory.
That being said, if it doesn't offer cloud streaming through PS Plus Extra/Premium on its own independent of PS5 Remote Play then the whole thing seems rather pointless.
Also it shouldn't be as big as the original Switch. I think the Vita is a more elegant/affordable size to aim for.
http://www.youtube.com/watch?v=F1gWECYYOSo
Please Watch/Share this video so it gets shown in Hollywood.