Dear ROS (Java, and Android) users, I'm happy to announce the alpha release of a new rosjava client library written in pure Java (http://rosjava.googlecode.com/). In partnership with Willow Garage, I've been working on this pure Java implementation of ROS for the last few months. We announced it publicly yesterday at Google I/O during the Cloud Robotics tech talk (http://www.youtube.com/watch?v=FxXBUp-4800). One exciting aspect of rosjava is Android compatibility. You can now integrate Android devices with your ROS-enabled robots and write apps for them. In addition, with the newly announced Open Accessory API and Android Development Kit, you can start controlling actuators or reading external sensors directly from Android devices. There are demos of Android integration in the tech talk and also sample Android code in the rosjava repository (see /hg/android/tutorials). This project is under active development and should be considered alpha quality. ROS toolchain integration is not yet complete and APIs will be changing as we continue to move forward. Best regards, Damon Kohler