30w ago - Below is a video tutorial from GameBlamer on YouTube demonstrating how to dump PS Vita games via the recently released PS3 CFW 4.21.
It has not been confirmed yet and I am not the uploader, I just found it randomly so consider it a proof-of-concept if it ends up working or an 'entertainment purposes only' video if not.
The video is partly in English and part in German, and although it can be followed if anyone wishes to translate the German parts to English or make a new video let us know and we will update this article with it... those interested can check it out below!
Finally, from wololo (via wololo.net/2012/10/25/backing-up-vita-games-using-the-new-4-21-cfw-by-rogero/) on the above video to quote:
Backing up Vita games using the new 4.21 CFW by Rogero
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