As you may already know SAP’s new look and feel will be based on the Fiori design concept using the SAPUI5 development tool-kit. If you are new to Fiori the first thing you should do is familiarize yourself with the Firoi look and feel. Luckily SAP has provided a demo system for you to do this at Fiori Demo
Once you have had a bit of a play with this, SAP also maintains a list of all the Fiori apps currently available. This provides details about each app including how it can be implemented. This can be found using the following link https://fioriappslibrary.hana.ondemand.com/sap/fix/externalViewer/