I'm a web designer and application programmer (10+ years experience). I built an application that tracks employees for a company and their information, along with scheduling and a few other items.

The company wants me to make their application easier to access on smart phones, droids, iphones, etc. I've never done anything like this. Can someone point me in the right direction for how to do this?

I purchased a book (Beginning Smartphone Development) and read through some docs on Android SDK and W3C. I'm also looking for some other resources and how I should go about this. I've tried adding an additional style sheet for handheld but that doesn't seem to work.

- Thanks in advance.