Remember that this IS NOT an official release OS. If you wish to install this OS keep in mind that this may cause your phone to not function correctly. BlackberryOS or any other BlackberryOS Official sites are not responsible. As we all know that it is quite normal during operating system development for certain features to be disabled while others are tested, and these beta builds often reflect that.
It will depend on your BlackBerry, it will be better for you to wait for community feedback on a build before deciding to download or install this release, or wait for the next official release.
Download OS for Black berry Storm 9500