IE 11 include a tab sync
What are synced tabs? Well, if you are on one machine and switch to another, using synced tabs, you could bring your browsing experience with you. It should be noted that this is not a new feature as Chrome and Safari currently offer this feature.
It would make sense that Microsoft would introduce this feature on Windows Phone as well so that when you are browsing on your phone, you could switch to your PC and continue what you were doing on your mobile device.
Windows 8 currently already allows you to sync many items including including your preferences using your Windows ID. The addition of tab syncing will be a welcome edition with IE 11 and will help to close the feature parity gap between IE and its competitors.