I've been asked by an interactive marketing company to work with their mobile team to design iPad/iPhone apps/sites. My contribution would be the design side and slice PSDs to HTML5/CSS3 for the app/web interface using HTML5/CSS3. I've done this in website development but this would be my first time in mobile development. This job would be contract based and full-time on-site. What would be a fair hourly range to ask for? This job is in the midwest, not a major city. Thanks!