I know of Nosky. What's the other client in the works? Is #[1] porting #damus to Android?
Discussion
Nostros, but the features aren't really built like Damus
Never used Damus, but both Android clients seem fine, design wise, to me. Have you see the Nostros feature roadmap?
I loaded Damus up on #[3]'s iPad and it's pretty slick. I'd use it if I was an iOS user.