Well I thing Gmail is in the leading but they have to make some changes. Gmail gives you more space, more speed but the interface is confuse. When you want to send a mail to a group of people you have to select one by one, you can't make groups or have a list of your contacts select whats you wish and move on, you have to type one letter and than select your desire contact. And the conversation type implemented by google to organize the mails is original, but is confuse and much less pratice. If they review this small things they will be great.Actually a thing we don't need more space, we need more easy ways to make the things.If I can I make a fusion of Gmail with Yahoo! Mail. Only the best!