Google mail seemed to have gotten a facelift a few weeks ago. But it also got more functionalities. Of the nice kind: I was working on an email exchange with a couple of people just now. While typing along there was all of a sudden a yellow message in the lower right corner. It informed me that somebody had added a message to the thread I was writing in. It’s this kind of helpful idea and feature that makes gmail the best mail app around these days. Very impressive.