OK, there is a language indicator/selector at top of Unity (I am on Ubuntu 12.04).
And I was thinking that text cursor color could be a nice way of current language indication. I'm using three languages, and while typing in Gmail or somewhere, we look at the text cursor. So for convenience reasons it would be a nice way to adapt separate color (or text cursor form) for each language.
I don't know if this is already implemented. Would be nice to use this feature. Would appreciate if you can point me in right direction.
As I said, this is not about mouse cursor/pointer, this is about the cursor in text fields.