Competition is really starting to mount for BlackBerry maker, Research in Motion.  Together with Seven, Nokia is planning to offer free “Push” based email access to POP and IMAP mailboxes. 

The free service will forward email to the phone as it arrives, making POP and IMAP email easier to use on a mobile phone. If it takes off, it will be a useful revenue boost for mobile operators — only the application service is free, and users will pay normal GPRS rates for the data sent and received. “It’s a good way to stimulate usage of GPRS.