It seems that 1.1 leave some resources outside when compiling.
If I clean the project, set the Ti sdk to 1.1 and try to compile, it gives me an error
[ERROR] Error loading app://info.rborn.ti/work/Iphone/ti/build/iphone/build/Debug-iphonesimulator/ti.app/master.css [ERROR] Error loading app://info.rborn.ti/work/Iphone/ti/build/iphone/build/Debug-iphonesimulator/ti.app/header.js
however, if I set the project to 1.0, compile, then come back to 1.1 and compile again it works.
obviously the files are there.
Titanium V1.1.2 fixes this issue. Thank you