I don't think so - before I voted there was 243 votes, and straight after voting there was 244. Unless someone else voted at the same time as me (which I guess is entirely possible,) both my votes from home and work were counted. If I try and vote again from here it tells me that I have already voted from this IP - does this imply that it's OK to vote again from another IP? I think Mr Gore would have something to say about this.