A number of ideas/rumours have surfaced over the last few months about how Twitter can give us a few more precious characters to use in our tweets.  Personally I don't really see the point - after all, the brevity of the tweet is part of its attraction.

Take a leaf out of microblogging network Natter's book who, whilst now up to a whopping five words, started life by giving users just three words to play with.

It's probably inevitable that Twitter will extend its character limit even further as it makes its bid to replace traditional email, but in the meantime I enjoy watching how creative brands and businesses can be with just one sentence.