Cross Site Content - it's coming in SharePoint 2013

As a lot of programmers who had a problem with cross-site content:how to show data from another site collection,another web application or another farm. All of us can search the internet and find solutions (3rd party, code implementation, etc...). In SharePoint 2013 this problem will be resolved by Cross-Site Publishing. On the official blog of the Microsoft SharePoint Product Group says that the new XSP aggregates a data by the search-based publishing model and a content can be shared across site collections, web apps, and farms. The new concept which introduced in SharePoint 2013 allows to publish lists, libraries, search catalog or variation data. More information is here.