It’s only Monday and there are already a bunch of newly leaked BlackBerry OS betas! Can’t wait to see what the rest of the week will bring.

• Download OS 4.5.0.153:
  • 8100
  • 8110
  • 8120
  • 8300
  • 8310
  • 8320
  • 8800
  • 8820

DISCLAIMER: Install at your own risk. This is Leaked/Beta software that is not guaranteed to be stable, and therefore will not be supported by RIM or your wireless carrier should you run into some problems. As a precaution, if you decide to upgrade, it is highly recommended that you make a backup before using this software. If you are not comfortable using Leaked/Beta software you should probably wait for the next official release. *

Source: BlackBerry News