   Multiplatform app
  I have to write an app that runs on windows/mac/linux.Instead of writing it for each platform I wonder what yous would recommend using so I only have to write it once. eg I write the source code once but it spits out 3 seperate ".exes", i.e. flash is not acceptableAny suggestions?ta zed   
  Use Java and stick with the provided libraries. That is generally the easiest way to write a cross platform app.   ; C/C++ perspective: If you want to code once and deploy to multiple platforms you will need to use cross platform source and libraries.Then you will need to settle on a good cross-compiling methodology.  Google cross-compiling to get a handle on that.Nothing will ultimately absolve you from having to be aware of multiple platforms while coding.  However, tools exist such that once you've taken the multi-platform aspect into account in your code that you can then produce binaries on one platform for the others you support.This is case for windows and linux but I'm not sure about cross-compiling for mac.  I've never done it.  Google Xcode and cross-compiling and perhaps something will turn up.----------I highly suggest that whatever you do you also settle on a methodology to prototype/test on the platforms you support.  Personally I prefer virtual machines and a good free one is Virtualbox granted you can't just stick anything in a VM and hope it works.http://www.virtualbox.org/[Edited by - Simulacrum on April 8, 2010 9:44:08 AM];  thanks guys, it looks like Im gonna have to build it on each platform, I have done this before but it does take a lot more time, I was wondering with the recent large growth in the mac if a new crossplatform develop method has become avialablesomething like thishttp://www.airplaysdk.combut thats gameplay related   