D Ninja writes "Yesterday, Google released Gmail Labs, which allows Gmail developers to decide what to include in the next feature releases of Gmail based on user feedback. As ZDNet has pointed out, essentially users are guinea pigs for these new features. Participants will vote on their favorite new features, and the ones that are voted the highest will stick around and the ones that are least popular will disappear."
Reader physman_wiu points out an article at the BBC
about the experiments on offer, writing: "Some of the features are really nice — like the option to use additional star icons, mouse gestures, and custom keyboard shortcuts. Others ... well, let's just say Old Snakey made it in."