I like the project with nice team and dedication to easy-to-use. But I still would like to see Android/iOS wallet for a peace of my mind to hold nimiq.
You can access your wallet from any OS, Android, iOS, Windows, Linux or whatever you want, since the wallet is browser-based : you only need a browser, no app to install, just go to the website and recover your wallet from your seed or create a new one.
That's all the power of Nimiq.
A phone app is still much easier though. It's like telling people to log into Facebook through their browser, they know they can do that but they'd much prefer to use the app.