Seems like justice was correctly applied in this case. As ever, large sections of the media are misunderstanding and misinterpreting what's happened here. The court did NOT find that Dewani was categorically not involved in his wife's murder, but instead it found that there was no credible evidence that he WAS involved.
Personally, I am ambivalent as to whether in fact Dewani was involved at all, but since there's clearly no decent evidence that he was, he should rightfully be considered innocent. At the moment, it would certainly appear that the case against him wouldn't even survive a "balance of probabilities" test.
One other thing (and not intended as a snide jibe): I wonder how Dewani's mental health issues will manifest themselves (or otherwise) in the coming weeks, months and years? Will he, I wonder, have an Ernest-Saunders-esque miracle return to good mental health? Will he be posting carefree contact messages on Grindr within a couple of months? Or is his mental health affliction real and longlasting?