if you go on the
www.Opera.com forums and do a search for gmail, you'll see all the info you need to.
personally, i like the idea and there really isn't anything nefarious about robots scanning email and placing "ads" off to the right that seem related.
I have always considered email to be public. just like these boards. don't say anything you are ashamed to say face to face.
and if you need to send secure info, try the old fashion methods.
right now, my issue is that it can't use Opera because the developers have to add support for certain codes. when that (may be) done, then I'll consider getting an Gmail account.