I would like to introduce you a new mobile application framework iPFaces for developing native, form-oriented applications. The aim of the solution is to screen the programmer completely out from the mobile platform itself, and transfer the entire application logic to the central application server level.
Developers with experience with one of the supported Web technologies (ASP.Net, Java, and PHP) may start working with iPFaces virtually immediately.
For more information, see the project web site at [link=http://www.ipfaces.org]www.ipfaces.org[/link]
where you can also find simple tutorial how to use GPS module.
iPFaces is distributed under GNU/GPL for community usage, client applications are distributed as freeware.