Another idea is to allow "x/y" or "x out of y" as scoring options. LV will hope that they'll be "/5" or "out of 5" to blend in nicely, but "7 out of 10" should probably be recognised and converted automatically.

My €0.02.

@simon - We still have star ratings but the reviewer can just use "superb" and we'll manually make that a 5 etc. Whilst most people only pay attention to 1 scores or 5 scores and are more interested in the opinion, star ratings are still useful as a simple ordering system for results etc. I wouldn't even bother read people's opinion of a hotel on roomex.com that averaged 2 stars or less in the reviews.

We actually used Re because it can mean "concerning". We thought it was a slightly amusing way of saying something like "Concerning Juno the movie, I found it fantastic". Not perfect grammar but the meaning is pretty clear.

I like this more open option. But just to sound a note of caution. Re is a recognised abbreviation to explain the context of a statement. Trying to co-opt for one use only will probably not succeed.

@review is probably the most intuitive, but if I was to review, it would probably be mostly for the benefit of my twitter followers, and not all of them will see replies to other people.

I think the @ is best because it sticks to normal Twitter conventions, however I also think that having two different but similar @reply functions would be confusing.

I wonder could you simply use @review but keep the structured ones for now and simply detect them through their structure and process accordingly?

I never got into using # tags in Twitter, and for anyone who comes to Twitter new, they have to get to know the @reply quite quickly to use it effectively, so there'd be no learning involved to send a review then.

Those who are used to sending structured reviews could still continue to do so if they wished for any reason...

Cheers!
Frank