[Dovecot] Push Mail?

Hi Guys,

I am just about to get my hands on a new blackberry mobile phone and I have done quite a bit of reading about different bits about getting the blackberry to work with Dovecot.

Can anyone make any suggestions about the best way to either implement a solution like push mail for dovecot? or is there a plugin etc?

Hope someone can help me, thanks in advance.

Kind Regards

Tony