BlackBerry’s BB, -2.13% US:BBRY Priv, which starts shipping on Friday and is available at AT&T and BlackBerry.com, isn’t yet another poorly timed misstep, says the Wall Street Journal’s Joanna Stern. As Samsung, LG and other Android titans focus on making phones ever-so-slightly thinner, faster and better at taking photos, the Priv’s slide-out physical keyboard, long battery life and focus on privacy stand apart from those. The first Android-powered BlackBerry even challenges Apple’s ruling iPhone.