Now Oracle wants to enter in mobile development too. Oracle has captured database market, GPL database market using MySQL, Hardware market using SUN, ERP market using Oracle APPS, developer market using Oracle developer, Java market using SUN and now it is entering in mobile development market too using Oracle Fusion’s ADF (called as Oracle Application Development Framework) . ADF is the framework to provide mobile application development.
It means Oracle will be capturing mobile development market very soon. Database administration is becoming more harder in future because it might be possible you need to take care of all Oracle servers including Oracle fusion middle ware with Oracle database server.