Here's how Microsoft execs are describing what they've accomplished:
"Got that ring? When you pick up a call on any device and your modern (Metro-Style) Skype is on, the incoming ring will stop much faster. Whether you have Skype on a mobile, in your Outlook.com inbox, desktop, tablet or 2-in-1, Skype calls will sync up wherever you choose to take the call from."
Back to the Metro-Style/Windows Store/Modern version of Skype: Microsoft officials also said on March 10 that the new version of Skype for Windows 8.1 also improves the synchronization of Skype across devices. Chat history and read messages will be synced properly across devices with the new update, according to the blog post.