I want use http://twitter.github.com/bootstrap/ in my application.
I found for yii two extensions: http://yii-booster.clevertech.biz/ http://www.cniska.net/yii-bootstrap/
Mayby is more then this 2?
Which one is better? What is difference? What with licence? My application is commercial.
Yii-Booster is a library that contains Yii-Bootstrap and many other Yii widgets and components.
If you just want Bootstrap your project Yii-Bootstrap will probably solve your problem, but if you want a more complete library I recommend Yii-Booster.
Example of widgets contained in Yii-Booster:
And many other components:
As told you in other answer, both projects use the license New BSD License.
It's all a matter of fitting your needs.