2. I'm not sure what you mean exactly, in the next version there will be an additional tray view, a small overview of the coins at the tray icon. If that helps you
Yeah, what I meant was something like a price widget bar that cannot be overlapped by open apps or browsers even when maximized. Something like this.
You can get some inspiration from bittab.io
The problem is its only available in windows and I don't think they have any plans for Linux.