Salesforce recently announced the new Lightning Experience - the effort to provide a mobile first experience. The "classic" experience looks a bit old by now, so it is a great opportunity with some challenges.
Here our timesheet in the "classic" look:
ok, yes - it needs some face lift - here the same with the Lightning Experience enabled:
... works but two worlds clashing.
So stay tuned for the next steps on this journey.
We are building a Lightning Dart toolset to help us with the conversion - http://lightningdart.com