Motorola Droid Bionic owners are counting down the days for that Android 4.0 Ice Cream Sandwich upgrade from Verizon and Moto. Scheduled to arrive in early Q3 (anytime soon now, folks!), a newer pre-release ICS firmware build, version .299, has preceded the official release and can now be downloaded and installed on your Bionic.

If you want to try the latest leaked firmware for Droid Bionic, you’ll have to FXZ back to 902 and then install the previous 905 update. Only then will you be able to flash the .299 firmware. If this sounds alien to you, it’s best to consult with the folks at Droid Hive. They’ve created a detailed tutorial on how to make that jump, making available the files users will have to download as well.

According to those who have braved the leak, their Droid Bionic seems to be running smoother compared to the previous builds. There are also reports of better battery life but the overall changes aren’t too prominent, but rather subtle.

Remember that there’s always the possibility of bricking your beloved Droid Bionic if you don’t follow the instruction carefully. So if you’re not comfortable with that, it’s better to wait for the official ICS release for your phone to be rolled out.