The new update includes several major upgrades and changes to the 2.1 version. They include, Flash 10.1 support, voice dialing with Bluetooth headsets, and faster system performance.
The updates will be done in a tiered format, meaning not everyone will receive it on August 3rd automatically. If you wish to manually upgrade on the 3rd, you can do the following:
On your EVO smartphone, press on Settings Menu > System Updates > HTC Software Update.
Other smartphones are expected to get the upgrade later this year.
