As you know, Twitter is a free service. However, Phil took time to remind folks today in a blog post that if you choose to send and receive some of your Twitter updates by text message, standard texting rates do apply. So, (depending on your particular mobile contract) if you go over your texting limit you might get billed more. Not everyone uses texting with Twitter but if you do, it’s good to know what sort of contract you have. Is it unlimited or are you allowed only a fixed amount per month?Read more…