Yeah, I don't remember any connection between Sandman and Uncle Ben either. There seems to be a number of theories going around regarding this "connection", and I'm hoping its not as close as it looks right now in the trailer. Some are saying he might have been the "boss" to the thug that actually shot Ben, some are saying its all a "dream" of Peter's - influenced by the symbiote, and some are saying its just and outright lie to mislead Pete/Spidey. Who knows, I guess we'll see in May, but I'm kind of hoping there isn't a real, direct connection between Sandman and Uncle Ben's death. It won't ruin the movie/franchise for me or anything, but I kind of hope it isn't too definite a connection.