I don't use any, but I expect to see more of them in the future. I think GMail is an offline web app? I am not a GMail user. It hasn't been so long that browse

I don't use any, but I expect to see more of them in the future. I think GMail is an offline web app? I am not a GMail user. It hasn't been so long that browsers come with the necessary APIs. GMail used their own plugin in the beginning (Google Gears).