Where can I get it for my HTC Eiris?
IIRC Google Navigation only works with Android 2.0 so you would need to wait till the Eris is updated to 2.0 or 2.1 to get it. I'm sure someone will correct me if I am wrong. lol
Is this update coming soon?
As with any update -- no telling. I'm sure you can find all sorts of dates via various rumors.
Yeah, I know what you mean. Just really like the sound of the navigator apps. Well all I can do is wait.