Photos of some slides from a presentation that purportedly talks about BlackBerry's product roadmap have appeared on Twitter, courtesy of @BB10Leaks. While it's difficult to verify the authenticity of the pictures, the slides display product names from BlackBerry's new BlackBerry 10 line-up and some 'upcoming' products along with their time-lines by quarter.
The picture of the slide shows the full touch Z10 and QWERTY keyboard device, Q10 in the first quarter. It also features a tablet with the name 'B10' which the company might introduce in Q3, and a large screen device, most probably a phablet, the U10, towards the end of Q4. It also indicates the presence of a large QWERTY device, the R10 which would debut in Q2 2014.