I temporarily used the Beta for the Tour and lost a lot of functionality on my device. Sure, it was faster, had more memory, threaded SMS,etc. - but the GPS programs were some of the main things I suffered from losing. I have Sprint Navigation, been using it for years on various devices and it no longer worked with the Beta. Also, Google Maps kept deciding it didn't want to find my location and Poynt had limited function.
The effectual fervent prayer of a righteous man availeth much. ~ James 5:16