Hi,
I have worked with apps that use GPS & maps in Android (&iOS) so this project shouldn't be a probelm for me. I might even have some code ready to be used so we can make this app go live quickly.
My work experience covers Android, iOS, Windows Phone & J2ME as I have worked over 8 years in the field of mobile application development. I'm quite new to freelancer and as I work here as individual I'm not able to showcase my previous work which is all under NDA.
Putting it all together, contact me to get best developer available.