Ask HN: Best app development firms?

Check out MutualMobile at http://mutualmobile.com/

They're the only one I know that can handle building iPhone, Android, BlackBerry, and mobile Web apps on time with their level of quality.

<self-promotion> Take a peek at my company (ReignDesign). We design and build mobile games and applications for iOS, Android, Blackberry etc etc http://www.reigndesign.com/ </self-promotion>

Good luck finding the right shop!

I've got no specific firms to recommend, but http://theymakeapps.com has a decent directory of dev shops. It's usually where I point people who are just starting their search.

http://www.selectstartstudios.com/ does the best work I know and are great guys to work with.