That’s why we’ll be rolling out a new feature on Chrome for Mobile to help you reduce data usage and save money on your mobile plan. When enabled, Chrome’s data compression and bandwidth management can reduce data usage by up to 50% while browsing the web on Chrome for Android and iOS. This feature also enables Chrome’s Safe Browsing technology which helps protect you from malicious webpages. link
I'm not a mobile chrome user, but Google serving up compressed pages from their servers could come in handy. The update isn't out just yet, but should be hitting the App Store soon.