Not much is going to make us excited about the BlackBerry world until RIM's latest devices actually ship, but today's announcement from Thorsten Heins is certainly good news in that regard. Today, he revealed that BlackBerry 10 units are now in the testing labs of more than 50 carriers, a necessary milestone that suggests the first BlackBerry 10 devices are still on track for a Q1 2013 debut. Naturally, it's a shame that the company is going to miss the holiday season, but if you have a BlackBerry fan in your life, we suppose there
