Google today announced that it is (for better or worse) finally going to get rid of that annoying "show images" button in Gmail.
The gist is that embedded images will be routed through Google's severs and then transcoded, ensuring you won't get hit with any malware. If you're worried about bandwidth — or just don't want to fix something that's not broken for you in the first place — you'll be able to keep the status quo in the settings.
The web version of Gmail is up first, and the mobile apps will see this feature early next year.
Source: Gmail Blog