On the $ side, I've worked on a couple lifestyle apps - there is money there but they have to be really huge (lucky for me they did in fact become huge).
On the marketing side, the key for the stuff I work on is that the app is about 10% of the project, the rest is distribution. So I'd think about apps that can spread via twitter, facebook, email, etc, and then build a simple app around that. Make the app simple, and really focus on the "marketing" side of things. "Marketing" in quotes because it is really still development though.
On the marketing side, the key for the stuff I work on is that the app is about 10% of the project, the rest is distribution. So I'd think about apps that can spread via twitter, facebook, email, etc, and then build a simple app around that. Make the app simple, and really focus on the "marketing" side of things. "Marketing" in quotes because it is really still development though.