I just installed the new BlackBerry software OS 7.1 on my Bold 9900 to see if it brings anything special; to install it just plug your BlackBerry to your computer and double click on BlackBerry Desktop Software and the update will begin.
New features inlcude:
-FM Radio: Users can share music.
-Wi-Fi Hotspot: Up to 5 devices can share WiFi connectivity.
-NFC-enabled: Users can share media files, information, URLS instantly by tapping NFC-Enabled BlackBerry phones.
-Ability to use Android applications on BlackBerry.