Mobile app developer from India. My main platform is Symbian, but I can also get the job done for JavaME and Windows Mobile. These days I'm learning iOS.
When I have enough time, I would also love to explore data analysis, statistics, NLP, artificial intelligence, parallel programming, distributed computing, highly modular systems, p2p networks, web apps, and more.
Recently there was a submission about Ideas for Beginning Web Developers (http://news.ycombinator.com/item?id=2757467).
I'll be grateful if, on similar lines, you could pitch in with some app ideas for beginning mobile app developers.
While I'm not new to mobile app development, most of my work has been on apps that have been quite similar to each other (2D games and barcode apps), and so my mobile app dev experience is quite narrow at the moment. If you could suggest some diverse app ideas, working through them would help me become a more well-rounded developers. Also, it would be useful to others who are truly beginners to mobile app development.