Among the features of BBM to other platforms, such as we find the ability to send text messages, location, photos and voice messages (though without being able to carry out normal conversation), changes in the status and profile picture, setting up and join the BBM groups (limited to 30 people) and inviting and being invited to speak on the basis of our e-mail address associated with BBM, number or generated QR code.
BlackBerry has promised the release of BBM for other platforms by the end of the summer. We will let you know as soon as it's available.
You can download the pdf user guides from here:
Read More [via Micah]