The hot trends on Twitter pretty much seem to sum up the mood of the Twitterverse. So, as I’m writing this, I can gauge that people are animatedly talking about ‘Snow Leopard’, ‘Jay Z’ and ‘Opera 10′. Now, can you predict what will be hot tomorrow? That’s what Pretweeting is all about. It is a nice addictive app that lets you earn virtual money for gauging...