In May, Microsoft and Research In Motion (RIM) announced an agreement to bring Windows Live Messenger to the Blackberry and yesterday it was released:
Incoming messages are received through the Push technology, and users can send pictures, use emoticons and have a customisable display picture. The client in simple and lightweight, but like the BlackBerry’s user base, is designed for productive users. All in all this is a simple application, but if you’re a Blackberry user, who natively uses Windows Live ID, it is a must.
Blackberry users can download it here.