New in gmail labs allows you to preview your inbox when gmail is loading. Useful, if you have a little slow connection. Your anxiety of which mails you are about to open will be served too.:) Just goto gmail -> settings – > labs look for inbox preview enable it, close the browser and relogin again.
http://gmailblog.blogspot.com/2009/05/new-in-labs-inbox-preview.html
I came across this post http://www.codinghorror.com/blog/archives/001072.html regarding a malicious intent behind the creator of g-archiver, a gmail backup program. Apart from doing what it claimed to do, the author John Terry stored and sent a copy of gmail username and password of every user who has ever used this software to his own email account. What a cheat!
Hence spread the word do not use G-Archiver!!