Research In Motion looks to be dishing out official BlackBerry OS updates on the first of each month. On the 1st of June RIM pushed out OS 4.5.0.153 firmware across the board.

Now according to a report by Crackberry, Research In Motion on July 1st released a large list of upgrades, so could this possibly be a sign of RIM moving to monthly updates?

One such release is the 4.5.0.161 update for all older BlackBerry Pearl and Curve devices from Hutchinson and is therefore an official operating system release. I wonder if we will see more BlackBerry OS updates on the 1st of August.