Some Android apps do more than simply provide you with information; they actually add new capabilities to your mobile device. Here's a list of 50 utilities and other Android apps that allow you to manage your phone and its capabilities in new and highly useful ways.
1) Bluetooth File Transfer With this app, you can explore and manage the files on any Bluetooth-enabled device, receive files and send contacts. It's built on FTP and Object Push Profile (OPP). Free.
2) SMS Backup + This app automatically backs up SMS, MMS and call log entries to a separate label in your Gmail account. Free.
3) JuiceDefender Is the battery on your Android phone consistently running on empty? JuiceDefender can help you extend it! The app intelligently manages your mobile connectivity and other battery-sensitive components to ensure your phone runs as efficiently as possible. For example, the default mode switches your phone from battery-intensive 3G mode to the less-draining 2G mode when you're not actually using the phone, and it turns of the Wi-Fi radio if the charge goes below a certain level. The Advanced Mode allows you to tune the app's triggers based on your individual needs.
4) Lookout Want to protect your phone? Lookout does just about everything. It provides security against mobile viruses, malware and hackers, backs up your data and even locates your lost or stolen device on a map from the Web. And if you can't find it, you can use Lookout to make your phone "scream" or simply wipe out all the data on it.
5) App Protector Pro Want a little extra security for your Android phone? App Protector Pro allows you to password protect any application on your phone, including e-mail, SMS, photos and more. Paid: $1.99.
6) Phone Halo Do you often lose your keys, purse or phone? With Phone Halo, you attach a small device to your keys, purse, computer bag, etc. and download the Phone Halo app to your phone. If you ever leave the device or your phone behind, the app uses Bluetooth and GPS to identify its location and then sends a map to your email. It can also cause the device or your phone to ring, even if your phone is set to silent. Paid: $59.95. (Profits will be donated to the Japanese relief effort.)
The Juice Defender Android App
7) Titanium Backup This powerful backup tool can backup and restore all apps, even protected ones, with their data and Market link. It can also save your phone settings, including your Wi-Fi access point list. Free (suggested donation $5.95).
8) Google Goggles Google Goggles is a visual search app. Take a picture of the object, landmark, logo, etc. you want information about and Google Goggles will return relevant search results. It will even provide information about businesses by displaying their names directly in the camera preview.
9) GPS Status & Toolbox Looking for more information from your GPS? This app displays your GPS and sensor data and provides the position and signal strength of satellites, accuracy, speed, acceleration and bearing. The app's tools include a compass with both magnetic and true north and a leveling tool.
10) Phonebook Looking for an alternative to manage your contacts? Phonebook displays your contacts with contextual information like missed calls, unread text messages and even birthdays.
The Phone Halo Android App
11) Document Scanner This app allows you to scan documents with your phone's camera, convert it to PDF and e-mail the PDF to anyone. You can even upload the PDF to Google Docs. Paid: $2.98.
12) WeatherBug Mobile WeatherBug provides live, local, location-based weather information from its network of weather stations. It offers alerts, radar, satellite maps and videos. Free.
13) Gasbuddy Find Cheap Gas This app provides comprehensive, real-time gas prices in your area (US and Canada) with maps. Users who pitch in by reporting gas prices in their area can win free gas.
14) TiKL Touch to Talk (PTT) Turn your Android phone into a walkie-talkie with this app. It provides push to talk capabilities between Android phones without additional hardware and without using minutes. Communication is near instantaneous on 3G and 4G networks. Free.
15) US Traffic US Traffic provides traffic reports about your neighborhood and works anywhere in the US. It supplies detailed traffic incident information.