The Apple iPhone doesn't have a way to create a signature for a text message the way you can for an email. There are a few apps on iTunes that claim to do this for you, but I don't recommend any of them. They're pretty cheesy, cost money, and are a pain to use. You have to switch between the text and the app in order to insert the signature. Who wants to add those extra steps … [Read more...] about iPhone: How to Add a Signature to Text Messages