Work it. Anywhere. Any time. Those were the fighting words behind the BlackBerry Mini Keyboard promo shots we showed you a few days back. Now, backing up what we'd heard, RIM's officially (and very quietly) taken the wraps off its new PlayBook add-on, with a shipping date of March 23rd and a $120 price tag. The Canadian outfit is pushing this peripheral on the business-oriented consumer, but there's nothing keeping the average Joe from dr
