Comment conversational format (Score 4, Interesting) 142
Wasn't Gmail the first to introduce the conversational layout? I remember the first time I saw it I was blown away over how simple the idea was yet how much impact it made on UX. Also, IIRC Gmail was the first to get Ajax right in a mail client, I remember being impressed when they embedded a GTalk client right there in mail. Then I think Google Calendar followed then docs with App Engine in there somewhere too. No matter your feelings on Google the company the software that sprang from Gmail is amazing.