RF.com is a San Francisco-based company focusing on the development of software and services that allow mobile telephone devices to converge Internet and traditional calling.

The company’s first product, the RF Dialer (http://rf.com), is a web-based application for the Apple iPhone that allows users to make Internet calls over their cell phone’s . . . → Read More: Make free calls from an iPhone

Another great topic from WikiHow. Some tips are more than obvious but here are some less known tricks:

Stop searching for a signal. When you are in an area with poor or no signal, your phone will constantly look for a better connection, and will use up all your power doing so. . . . → Read More: How to Make Your Cell Phone Battery Last Longer

Each drop has a phone number and custom extension (just like each has an email address). Dial the number, wait for the prompt, enter your extension and start talking. Whatever you say we will convert to an MP3 and put on your drop in a matter of a few seconds…for you to . . . → Read More: Every phone is a voice recorder

Nokia PC Phone is an experimental service that gives you the ability to use your mobile phone from your web browser.

You can call, text, and manage contacts from your phone – all through your PC!

The great thing about Nokia PC Phone is that you can use it to communicate with friends . . . → Read More: Control your Nokia Phone from your browser

I stumbled on this site and found lots of interesting freewares for all the smartphone models. Check it out: http://www.smartphone-freeware.org/