Downloading OS X Lion Update for MacBook Air and Mac mini 10.7.1 from our website was free. The application lies within System Tools, more precisely System Optimization. The actual developer of this free software for Mac is Apple Inc.
From the developer:
OS X Lion Update for MacBook Air and Mac mini is recommended for all users running OS X Lion. The application includes general operating system fixes that enhance the stability and the compatibility of your Mac. However, you shouldn't interrupt the installation process once you have started to update your system.
You may want to check out more software for Mac, such as Migration Assistant Update for Mac OS X Lion, which might be similar to OS X Lion Update for MacBook Air and Mac mini.