Musings of a novice Android developer

On the train to uni at the moment. I realised yesterday that I'd have to juggle 3 group-work assignments on top of work and everything else. *sigh* Today I have a 3 hour Mobile Applications Development class. I'm not entirely sure of what I should do for my assignment: a simple tool or a more elaborate database-based app? The problem is that when it comes to big systems, I get overwhelmed quite easily and everything goes messy. But if I could pull it off, it would be quite awesome. If I go with the tool, I'd have to add some features to it that would make it 'shinier'.