Nerval's Lobster writes: BlackBerry CEO Thorsten Heins believes that tablets will be dead by 2018. “In five years I don’t think there’ll be a reason to have a tablet anymore,” he told an interviewer at the Milken Institute conference in Los Angeles, according to Bloomberg. “Maybe a big screen in your workplace, but not a tablet as such. Tablets themselves are not a good business model.” That may come as a surprise to Apple, Google, Amazon and Samsung, all of which have built significant tablet businesses over the past few years. Research firm Strategy Analytics suggested in a research note earlier this month that the global tablet market hit 40.6 million units shipped in the first quarter of 2013, a significant rise from the 18.7 million shipped in the same quarter last year. So why would Heins offer such a pessimistic prediction when everyone else—from the research firms to the tablet-makers themselves—seems so full-speed-ahead? It’s easy to forget sometimes that BlackBerry has its own tablet in the mix: the PlayBook, which was released to quite a bit of fanfare in early 2011 but failed to earn iPad-caliber sales. Despite that usefulness to developers, however, the PlayBook has become a weak contender in the actual tablet market. If Heins is predicting that market’s eventual demise, it could be a coded signal that he intends to pull BlackBerry out of the tablet game, focusing instead on smartphones. It wouldn’t be the first radical move the company’s made in the past year.