Do not make an Android app until there's proven validation in the iOS app. If you're not getting very many bites in the App Store, you'll get even fewer in the Android world. Your app is market-agnostic, so iOS interest will be a good indicator of Android interest.
I disagree. Now that the op has launched, and given that this is pretty low hanging fruit (from a development perspective) I think it would be advisable to hit every feasible platform as quickly as possible before another HNer does.
This has the opposite focus of a successful business.
To grow a business, you don't focus on what's easier for you as a developer, you focus on what information you can get to make strategic decisions that maximize revenue.
In this case, the smart thing is to dedicate everything into determining if there's a market for this app before deciding to take on the massive responsibility of supporting not just one platform, but two.
