Ditto for BlackBerry is a very useful application, allowing you to have group chats via SMS. Setup is quick and easy. Simply add contacts to the chat, tag them, and start texting. This saves the confusion and hassle of having multiple one person SMS chats. Overall Ditto is a great solution to BBM Groups, especially if your friends SMS a lot from their non-BlackBerry devices. Due to popular request, Ditto has been updated and now includes a 7 day free trial. You can pick it up for $2.99 via BlackBerry App World. It is available for most BlackBerry devices.