Keep in mind this is REALLY not supported by Google since they only support it for the 8110, 8120, & 8130. This is the new voice search version that was released as an experimental version by Google.
One of our readers, Hank, discovered that you can install it on a 8300 or 8800 series device just by going to the download link directly.
If you can’t risk some issues with your Berry I WOULD NOT INSTALL THIS! Don’t say I did not warn you!!!
But I can confirm that it does work like a charm on my AT&T 8310 (OS 184.108.40.206) & Sprint 8330 (OS 220.127.116.11) & AT&T 8800 (OS 4.2)!
Just head on over to this link from your BlackBerry Browser: