I understand that this feature is on your to-do list. It's also reasonable not to make comments about time tables for feature releases. I can appreciate that it's one thing for users to request a feature and another for you to develop, test, and implement one.
At the same time, this very key feature has been in the works since 2008. Has it been started? Are there significant hurdles that make its completion uncertain? Is it really, actually on any to-do list? You keep adding new features, some of which seem like rather significant projects. How did they beat iOS sharing to the finish line?
I already let one pro subscription go and have been sharing one account, which effectively achieves the desired sharing capability, but with some caveats. This feature is a deal-breaker for me, but I think Toodledo is otherwise far superior to other options and so I have been willing to wait. Are we waiting for a train that isn't coming?