RIM dropped an intriguing hint about a likely release date for the BlackBerry PlayBook during its Q3 earnings call this week -- namely, that the company expects the first revenue from the dual-core tablet to arrive in the first quarter of the company's fiscal year. "There are no PlayBook revenues included in our Q4 guidance, and we expect the first revenue impact from PlayBook will be in RIM's first quarter," a RIM spokeswoman said, adding that the PlayBook is still slated to ship in the first quarter of the calendar year. If that still sounds like financial gibberish,
