RIM's attention around its QNX-based platforms might revolve around BlackBerry 10 as of late, but don't think that it's leaving BlackBerry PlayBook users behind. A PlayBook 2.1 update is rolling out today that fills in some of the gaps left by 2.0 earlier this year. Habitual messagers can now start SMS text messages directly from the tablet when tethered through BlackBerry Bridge; they also get overdue support for a portrait view in emai
