Research In Motion’s PlayBook launch will be delayed by a month due to Apple buying up all the supply of touch screens, according to DigiTimes.

In the meantime, RIMM Co-CEO Mike Lazaridis walked out on a BBC interview to promote the PlayBook, after the interviewer asked about RIM’s problems in India, where the government wants to gain greater access to the tight security system used for Blackberry’s business users.

Mr Lazaridis responded by saying the question was unfair, and that the “interview was over”. See video

RIMM, Motorola, HP, Google and even Cisco are trying to sell their version of an iPad with little success to date. Apple’s has been absorbing all the capacity in the electronics components supply chain and as a result its rivals have had to overbid for components. This in turn makes their tablets more expensive than the iPad.

The PlayBook is about the size of 3 iPhones put together side by side. It is much smaller than the iPad however it costs more than the iPad.