It appears that under Ti SDK 3.0.0.GA, customized Default.png isnt taken into account when compiling to install on physical device.
I created a bug issue TC-1660 after several tests (described in this ticket).
Can someone do the tests and confirm please ?
I have just compiled an app I have created using only Ti SDK 3.0.0 GA and I am seeing MY version of the default.png startup/splash screen. I have tested on an iPhone 5.0 so far, but I wnated to check what equipment you are using.
Are you targeting iOS if so which device, if Android which device and what resolution is that device?
Does the emulator/simulator show the correct image? What do you mean a custom default.png - do you just mean an image you made or something more complicated?
I have written all the steps (and procedure) in the following ticket https://jira.appcelerator.org/browse/TC-1660.
Emulator is ok but the problem is on device. Customized Default.png isnt taken into account on device (iPhone 3GS).
If you try to install your app on your iPhone 5, as Default@2x.png is the launch screen for you, you wont see the problem, but if you look in the compiled app path:
Project_folder/build/iphone/build/Debug-iphoneos/ProjectName/ and view archive
you should notice that Default.png is still Titanium one (instead of the Default.png in /Resources/iphone
…if you reproduce the problem.