Well, I've been down using Photoshop lately, and I realized that what would help the Java tool a lot is if you put in keyboard shortcuts (ex. E = eraser, B = brush, K = Fill, etc.). I know that some people who are used to tapping the keyboard a lot while using shortcuts in Photoshop and other editing programs would probably find the advanced tool a lot more efficient when using it on RMD
Just to add to this, the single most important keyboard shortcut is colour selection being active when pressing "Alt". It doesn't have to be alt if there is some technical issue with that, but that's the PS standard.
This would make drawing and painting so much faster.
In a more meta sense, just that single change would make Drawchat significantly more appealing to a lot of good artists.