We're a mobile dev house (iOS and Android), and we charge around $60-$80 / hour. www.polymorph.co.za . Sounds like we should get some US clients if $150 / hour is realistic.
An experienced mobile developer working as an employee at a dev shop in the US should be able to make that kind of hourly wage. Considering the fully loaded cost of employing someone is between 150% to 200% of the salary (equipment, office, infrastructure, training, benefits, etc.), you're effectively working for as little as $30/hour.
Sure. Most of our work is actually for corporate clients, so not commercial apps found on the market under our name, but a few examples of commercial apps are: