I know that I have talked about BlackBerry Messenger before and even recently listed it as one of my 5 must have free BlackBerry downloads, however, I feel that I need to mention it again because it is just an incredibly useful and nifty application.
Now, I will be the first one to tell you that BlackBerry Messenger is not the most technologically advanced IM client for the BlackBerry, however, in classic BlackBerry style, BlackBerry Messenger is easy to set up, simple to use, and flat out gets the job done when it comes to sending quick messages to another BlackBerry user or even a group of users.
One of the things that I like most about BlackBerry Messenger is that all BlackBerry users are able to use it. You don’t even have to sign up for an account. If you have a BlackBerry, download BlackBerry Messenger and invite other BlackBerry users via email or their BlackBerry PIN. Invitees that don’t already have BlackBerry Messenger installed can download the app over-the-air via a link in the invitation they receive or just go to the downloads section of mobile.BlackBerry.com.