I recently got a blackberry and i'm still on a simplicty tarrif unlimted texts with 300 minutes and at the moment 100mb of internet, but from next month it will be 300 minutes and unlimted texts, I brought a blackberry bolt on from o2 which is
BlackBerry Bolt On
Get BlackBerry email, internet and messaging for only 5 a month.
Get 500MB internet plus unlimited BlackBerry access.

Is this the right thing for me to be able to get BBM and get access to the BB app store etc?

Many thanks!!