Every once in a while a great free app comes along that is so choc-full of features it's just awesome. Browsing through App World I came across Advance OS and LED, and I have to say, it totally fits the bill. This free app offers customization of your BlackBerry LED, offers popup notifications, extra phone call features and much more. It's not often that you'll find this many different features packed into one app, but this time it's for real. I've been using the app for the last week or so and I really don't have any complaints. The UI isn't really the greatest (it's pretty far from it actually), but free is free. You can customize your LED color for SMS, email, phone calls, BBM, contacts and more. Add vibration alerts to your calls, turn on popup notifications for emails and SMS, backup/restore your settings within the app ... the list goes on and on. This is really an awesome app to have as it adds plenty of fun tweaks to your BlackBerry. Advance OS and LED is 100% free and as the developer notes, all future updates will be free as well. Drop by BlackBerry App World for more.