YOU MUST HAVE A PUBNUB ACCOUNT TO USE THE API.
PubNub 3.4 Real-time Cloud Push API - BlackBerry
www.pubnub.com - PubNub Real-time Push Service in the Cloud.
Please reference the demo app! Detailed instruction on how to run can be found at: https://s3.amazonaws.com/pubnub/github/Pubnub%2520Blackberry%2520Example%2520App%2520Setup%2520Guide.doc
for an example of how to bring real-time asyncronously in your applications!