In further woes for RIM, the firm has also revised its predicted sales of smartphones in the fourth quarter of 2011 to between 11m and 12m units, down from 14.8m in the same period last year.
RIM shares fell more than 6% in after hours trading yesterday, after the firm reported net income of $265m (£171m) for the three months to November 26, down from $911m in the same period of 2010.
The company had originally planned to release BlackBerry 10 smartphones in the first three months of 2012, but that has now been pushed back until later in the year.
RIM said that the delay is down to the advanced chips required for the phones not being available until the middle of 2012.
RIM's new OS will power the next-generation of BlackBerry smartphones, and the firm hopes that the system, originally called BBX until RIM lost a trademark battle over the name, will help it claw back market share from Apple's iOS and Google Android.
But the delay now means that the BlackBerry 10 range, which will use a variation of the QNX operating system powering the BlackBerry PlayBook, will not be available until late in 2012.
It's been a tough year for RIM, which saw its previously rock-solid performance record shattered during a humbling global BlackBerry service blackout in October.
Earlier in the month, the company swallowed a charge of $356m for unsold PlayBook tablets, following continued sluggish sales of the product since it was released earlier in the year.
The BlackBerry service outage cost the firm a further $50m.
"Despite the challenges faced in the third quarter, the BlackBerry subscriber base grew to almost 75 million customers around the world," said Jim Balsillie and Mike Lazaridis, co-chief executives at RIM.
"In addition, RIM launched a range of new BlackBerry 7-based smartphones globally and introduced holiday promotions that helped drive growth in the installed base of BlackBerry PlayBook users.
"RIM continues to have strong technology, unique service capabilities and a large installed base of customers, and we are more determined than ever to capitalise on our strengths to overcome the recent execution challenges surrounding product launches and the resulting financial performance."
They added: "As part of our commitment to improving our performance to better meet the expectations of shareholders and customers, we continue to evaluate ways to improve in several areas of the company's operations.
"It may take some time to realise the benefits of these efforts and the platform transition that we are undertaking, but we continue to believe that RIM has the right set of strengths and capabilities to maintain a leading role in the mobile communications industry."