Will the contact list recognize if a contact used BlackBerry?

So I remember during one of the presentations by heins that he went to the contact list and it showed him if someone was using a BlackBerry by asking to invite them to BBM I think.

I thought someone in my list is on BlackBerry but it doesn't seem to say the "Invite to BBM". It's posible they aren't on BlackBerry anymore though. Has anyone seen this option??

And unfortunately being in states means I might not know a single person left on BlackBerry besides me.

Thanks

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