Google is releasing a new tool which will let programmers as well as the non-programmers to create mobile applications for Android powered devices.
Using app inventor you can build any app without knowing progamming.You will be able to visually design the way the app looks.It has also got text-to-speech capabilities with which you can get interactive.
Google has been testing App Inventor in classrooms around the United States for about 1 year.
The app will give Google an advantage in smartphone market.You can use Google Android App Inventor if you have a gmail account.
Watch the video and try app inventor.
Source: Official google blog