RIM held a BlackBerry WebWorks developer event in San Francisco this evening, and while hard news was not in attendance, we did score a number of tidbits about the company's BlackBerry PlayBook. First and foremost, there's most definitely a portrait virtual keyboard in the latest QNX tablet build, and we literally gave it a spin, watching as the landscape layout slowly switched to portrait mode as we changed the slate's orientation. Second, we may have gotten our first hint about what RIM's doing with the recently-purchased
