Need suggestion from professionals....

I’m a B.TECH (ECE) passed out 2013. I've knowledge on C, .NET, OOP. I’m selected into a software company (CMM 3) as a fresher. I am being trained on mobile application development. (Since 1 month.) I want to move into SAP ABAP development. Now I’m currently learning SAP ABAP and HR ABAP (from non SAP AG certified institute). How good are mobile technologies to choose as a career? Is it possible for me to show my experience as mobile app. Developer “AFTER A YEAR” and apply for jobs on SAP ABAP? Should I continue with the present job or should I keep trying for a job on SAP ABAP? What do you suggest? Also please differentiate career growth of a mobile app. Developer and an ABAP developer. Please give your valuable suggestion. Thank you.