According to sources online, this Airtel data plan can also be used by Non-BB devices, I'm yet to give it a try but incase you are interested, see the subscription code for 3GB Airtel plan below.
Subscription code for the Airtel 3GB data plan for 1000 Naira
To subscribe for the Airtel 3GB data plan, dial *431# from your Airtel phone and ensure you have a minimum of 1000 Naira credit before attempting the code.
NB: You can check your MB balance anytime by dialing *140#.
Have you tried this Airtel data plan? Let me have your feedback in the comments section. Enjoy!