Ever played with more than 8 Civs? That's the problem I'm trying to solve for. The F4 screen can also show you that a Civ has a worker for sale, but you have to click several times to do it. The Trade Assist's specialty is that is monitors in real-time and lets you know there has been a change of status without having to dig around in the sometimes cumbersome game menuing. One of the most cumbersome aspects of a 9+ player game is seeing their diplomatic and trade relationships. Also knowing when they change - "Egypt has signed an ROP with Germany", etc.
Basically that's all I'm looking to do - just want to make sure I'm not duplicating efforts. Would be glad to help if anyone is already working in this direction.