Hai,
I'm Theerthan, I'm gald to introduce myself as an android developer. I've read your requirements brefiely, to my understanding you are in requirement of a android based application for trucking company., since you have mentioned that you are already having a working iPhone app for the same product as the look and feel and designing part is going to be same in android as well. I suppose that your application will be used for tracking trucks using GPS something like that. Infact if you wish we can give a new look and feel of android latest version L. I can able to give you a big picture once you precisely give me your requirement. Presently I'm working as an android developer in a concern for over 3+ years, I've a good knowledge in android application development as I have successfuly completed more than 20 projects in android. If you are in dilemma try VoicePRO application from the google play store, its one of the major application I have worked. I would like to work with with you and see through that your requirements are met and proper support is given to your product after the delivery. I'm sure you are going to successful with your project.
best of luck & regards,
Theerthan