Rumors from Reliable source put the 8300 at AT&T stores next month Rumors are just that -- rumors -- until they start to take shape and more people can confirm them. That being said, this one's pretty juicy: sources tell us AT&T the BlackBerry 8300 has appeared on their internal website with a tentative launch date of May 25th. That date would fall right in line with Boy Genius and his predictions, making for a fabulous month of May with rumors of the 8800 coming to T-Mobile and possibly the Beautiful Pearl coming to Sprint and Verizon.