It might not be BlackBerry’s “Defence Department” trusted level of email, but the PlayBook finally gets its OS 2.0 and native email, calendaring and more, adding a new lease of life to RIM’s trim tablet.

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Increasing use of IP-based social messaging services by consumers on their smartphones cost telecom operators $13.9 billion last year alone, according to one analyst firm, and it expects the losses to mount further as the popularity of messaging apps continues to grow.