I'm inclined to think Video editing will be the easier of those two. Modern chips include hardware video encode so unless you're doing some heavy video processing you don't need that much power. The previously mentioned Pandaboard has 1080p hardware encode.
You know I thought about that initially but then considered the following: Many of those hardware encoders tend to be propriatary in nature, whilst I'm sure there are possibly some open source drivers that can make full use of them I really have big doubts that that level of support would be available to small projects such as AmigaOS.
OTOH The big problem in photo processing is you need ever more powerful hardware to handle ever more megapixels. I bought Lightroom 3 a while back, I promptly upgraded to a Core i7 machine to run it! Heavy processing on 21MP images requires a LOT of power and no Amiga flavour has that.
I'll happily defer to you on that.
BTW 21MP may sound like a lot but you can get 12MP in phones now.
I know about those phones, when I first read about them it left me feeling incredibly old.
Come back? It was never big as a desktop platform.
commodorejohn's response to this was a work of art. However I'll clarify, whilst it was never a major player it did have a fairly viable userbase. In 1997 if there was ever going to be anything to change the course from micro market, hideously (to the point of being non-viable) expensive hardware to something a little more reasonably priced for tinkerers and retro fans alike, it was back in 1997.
@runequestor loved your response