Not by Dan but there have been murmurs over the years about better Android apps by individuals.
This is the only Android app I know which is actually based off of this ToDoList (AbstractSpoon) software.
I was going to say the project is dead but it looks like the author just updated it, so give it a shot.
Just remember - that app has nothing to do with Dan, it's not supported here, and it may not work beyond TDL 6.x.
I wrote
ToDoListLib .NET for PC projects, and for Xamarin which would get us Android and iOS too. I just haven't had time to continue with it. Or rather, the priorities of daily life and business have been higher than this. If there were waiting offers to buy mobile apps or a web version of TDL then the priority to create solutions to meet demand would rise significantly. Maybe I should create a Kickstarter project for crowdfunding or something, dunno.
That's where that stuff is now...
T