Back in September, in a post called Loopy stuff, I blogged about FilmLoop, which is a way of sharing strings of photos using Windows PCs. At MacWorld, FilmLoop has just released a pre-beta of its Mac version. However, as Dave Winer has noted, it's not likely to get much attention, because Apple has just announced "photocasting".
Small world dept: as CNet's FilmLoop story notes, Guy Kawasaki, Apple's former evangelist, is "a board member and investor, as well as a high-school chum of [FilmLoop] co-founder Kyle Mashima".
Kawasaki just posted Lessons from Steve's Keynote on his blog, with photos in a FilmLoop.