i don't think it'll catch on. aquajet surfboard, anyone?
this sort of thing has been tried before & failed. i think this will be the same thing. like stranded said, it won't be tolerated.
not to mention the fact that, at least here in the midatlantic, the paddle isn't really long enough to justify such a thing on all but the biggest of days (even then it's a stretch). & i have a feeling that, not being duck divable, the board will just get pushed back to the beach as it tries to punch through the impact zone. then the battery will run out & the person will be stuck. i bet that would be entertaining to watch, tho! just picture it: guy w/ a powered board (aka: more $$ than brains) mistimes the sets & tries to paddle out while a solid, hurricane generated 8-10ft set rolls through. it'd be like watching someone in a little fishing dory try to punch through!
old people think technology is the next step. Young people hate technology and want to drive woody's and ride alaia's. Such a conundrum. VB is so packed full of kooky longboarders, 50 something "im still cool" SUP riders, and elitest pre-teen "locals", I dont even see it effecting me. I hate you all anyways, thats why I surf in sandbridge.