BlackberryOS.com has got their hands on RIM’s Blackberry OS 10 roadmap. According to the report, we’ll see Playbook with 4G support in Q4 of 2012, then in Q1 next year RIM will launch Nevada and London smartphones, the first devices to get BlackBerry OS 10. Somewhere between Q2/Q3 we would get to see a device codenamed Nashville with Naples in Q3/Q4 of 2013. Also a tablet codenamed Blackforest will be launched in Q3 of 2013. These might be the devices that could help RIM gain some momentum in race with Apple and Samsung (top two smartphones manufacturers).