Don't hold your breath for a sequel to the BlackBerry PlayBook tablet.

Speaking to the press yesterday during the BlackBerry 10 launch event, CEO Thorsten Heins wasn't particularly upbeat about tablets.

"The tablet business is rather difficult," he conceded.

Indeed, the tablet market has seen a lot of entrants, but only a few winners. While Apple's iPad franchise continues to dominate, its market share is eroding to only a few players, including Google's Nexus 7, Amazon's Kindle Fire franchise, and a few of the Samsung Electronics tablets. But that doesn't leave a lot of room for a company like BlackBerry (formerly Research in Motion), which is struggling to claw its way back into the smartphone business.

"Personally, I think it's pretty futile at this point," said Jan Dawson, an analyst at Ovum. "Like Apple, (BlackBerry) really has to make its margin on the device, but it can't charge a premium like Apple."

Heins said as much when he said that he was only interested in pursuing areas that were profitable, indicating he doesn't see much money to be made in the tablet business right now.

BlackBerry, of course, had been burned pretty badly with its first tablet in April 2011. ThePlayBook was a favorite project for then co-CEO Mike Lazaridis that ended up as a major embarrassment for the company when it launched. It was the first device to use the QNX operating system, which is what BlackBerry 10 is based upon, but lacked critical features such as BlackBerry Messenger and e-mail.

BlackBerry steadily updated the software for the PlayBook, filling in missing features, and heavily discounted the product, resulting in an increasing trickle of sales. The company shipped 255,000 PlayBooks in the fiscal third quarter, a paltry number by normal standards, but impressive given that the product is nearly two years old.

Heins said BlackBerry was working on a BlackBerry 10 update for the PlayBook, although he didn't specify when it would come out.

He also opened the door to BlackBerry potentially building tablets to address specific industries, but from the looks of it, those plans are just that. He talked about the potential to sell additional services to that industry.

"We want to provide a value proposition that isn't just hardware, but software too," he said.

But it's unclear whether businesses would even want to use a BlackBerry tablet, especially with tablets running Windows 8 starting to come in to the market. Despite a large presence in the business world, the company doesn't have experience catering its products for individual industries, also known as verticals.

"(BlackBerry) has no real credibility as a vertical provider," Dawson said. "It's never done anything vertical specific before and most industries can see through superficial verticalization pretty easily."

Heins is taking a look at this area because the consumer market for tablets looks even more frightening to a company in BlackBerry's position.