Moore and Kutcher threaten to quit Twitter

Demi Moore and husband Ashton Kutcher are threatening to quit Twitter over reports of a new reality TV show being made about the social networking site.

Reveille and Brillstein Entertainment, the production company behind 'The Sopranos', the US version of 'The Office' and 'Ugly Betty' are developing a show encouraging ordinary people to compete over “trailing” their favourite celebrities using Twitter.