Google has just made their SLAM project open source

A couple days ago I noticed that google have just open sourced Cartographer, which is its library for real time SLAM which is particularly useful for indoor robotics. A paper was also released on IEEE recently which explains the 2D SLAM part of it in great detail should anyone want to read it it is here

There are many other great SLAM packages available such as Hector SLAM which is nicely integrated with ROS so will be interesting to see how cartographer compares.