Listening to the Security Now podcast today, I found out that Google has added a new setting to Gmail for always connecting securely using https.
Once logged into your Gmail web account, click the “Settings” link. On the “General” tab, at the bottom of the page, click the radio button next to “Always Use https”
I use a Flickr extension called Gmail Manager, and it always logs me in using https, but this will still be handy especially when logging in at work, or when I eventually get my iTouch or iPhone.