Google Inc. (NASDAQ:GOOG) has announced that the Google Translate application is now available on the Apple App Store. The application accepts voice input for 15 languages and it can be translated into one of more than 50 languages. There is a microphone icon next to the text box and you can say what you want to translate. You can listen to your translations spoken out loud in one of 23 languages.

Twitter has added several new features to their user interface. Local trending topics have been a popular feature on Twitter so more cities have been added.

The new cities and countries that Twitter added include: Argentina, Australia, Chile, Colombia, France, Germany, India, Indonesia, Italy, Netherlands, Singapore, Spain, Turkey, Venezuela. Cities: Detroit, Miami, Minneapolis, Rio De Janeiro, Sydney, and Toronto.

A lot of tweets sent out on Twitter are on different languages. In order to make it easy to understand what people are saying, Twitter integrated Google Translate into each tweet. As of right now this feature is only available for a small percentage of users.

[Twitter Blog]

GMail is one of the most used e-mail systems across the globe.  Given that there are about 7,000 languages spoken around the world, being able to understand each other’s communication is very important.  Hence Google’s integration of the Translate service into GMail.

In the Google Labs tab in GMail, there is a feature called Message Translation.  If you receive an e-mail in another language with this feature enabled there will be an option where it says “translate message to:” or an option to “change language.”

The feature was announced on the Google GMail blog.