RIM wants to make sure it is "confident we have fully met the expectations of our developers, enterprise customers and end-users," David J. Smith, SVP for BlackBerry PlayBook, wrote in a blog entry.
The new version will be released in February and won't include the BlackBerry Messenger application.
The PlayBook launched in the U.S. and Canada in April. The OS update was supposed to come 60 days after that.
The company launched a beta version of PlayBook OS 2.0 last week at BlackBerry DevCon, an announcement that was overshadowed by RIM's introduction of BBX, its new mobile OS that will hit the market next year.
Despite investors' apparent reaction to the move, few people are likely to be affected. The company shipped just 200,000 PlayBooks in its most recent quarter.
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