I went to an inventors' exhibition today. There wasn't a great deal for cyclists - and nothing electric - although there was a compressed air tricycle:
http://farm4.static.flickr.com/3473/3404661768_c8e646890b.jpg
There was also a novel (to me, anyway) bike lock which worked as a sort of steering lock in reverse - when locked the handlebars were no longer connected to the front wheel (giving the added advantage that the bike could be leant against a wall and the handlebars aligned with the wall to give a slimmer profile - I think you can just make that out in respect of the bike at the back of the picture):
http://farm4.static.flickr.com/3658/3404661242_6124b66b9c.jpg
http://farm4.static.flickr.com/3473/3404661768_c8e646890b.jpg
There was also a novel (to me, anyway) bike lock which worked as a sort of steering lock in reverse - when locked the handlebars were no longer connected to the front wheel (giving the added advantage that the bike could be leant against a wall and the handlebars aligned with the wall to give a slimmer profile - I think you can just make that out in respect of the bike at the back of the picture):
http://farm4.static.flickr.com/3658/3404661242_6124b66b9c.jpg