Based on this https://devboard.gitsense.com/martinvonz/jj https://devboard.gitsense.com/martinvonz/jj it looks like there are two people working on it full-time

Based on this https://devboard.gitsense.com/martinvonz/jj https://devboard.gitsense.com/martinvonz/jj it looks like there are two people working on it full-time, with 7 people contributing at least 500+ lines of code churn and 14 contributing code changes. Overall the project is fairly healthy and there does appear to be enough people engaged with the project that it should continue, should Google pull the plug. Full disclosure: This is my tool