The official rollout of Froyo or Google Android 2.2 has begun at least for some HTC mobile phones.
Sprint just announced that the Android 2.2 firmware will be available for download on HTC EVO 4G phones sometime next week.
Android 2.2 is considered speedier than the previous release (Éclair or Android 2.1) and offers an option to store install apps on external memory that giving you more storage room for your Android Apps.
Customers will be able to download the Android 2.2 upgrade directly on their HTC phones once they receive a notification from Sprint. Alternatively, they access the 2.2 software update through the Settings Menu > System Updates > HTC Software Update.