Apple introduced the Swift programming language at the World Wide Developer Conference as the successor of Objective-C in for developing apps for iOS two years ago. In contrast to Objective-C, Swift was supposed to allow a far more logical and easier syntax. The object-oriented language borrowed heavily from the syntax of previously established languages, such as C# and Objective-C.
Google is now also planning to support the language with its Android operating system. Apple has meanwhile placed Swift under the open source license. This could oust Java and make developing apps for both iOS and Android far easier.
However, the change will take some time, as numerous Android libraries are only available in Java and therefore need to be rewritten. It will thus take a while until Swift is fully supported.