I am pretty sure I'm talking about BREW Apps which looks like this:
*.mif
*.mod
*.sig
U960 is an BREW enabled handset.
NO JAVA Midlets possible, as JAVA Virtual Machine is "missing", better "removed" from Firmware.
As Samsung protected few files more then LG did... you have some problems to copy files easily from handset...
From Samsung R810 we have bypass this "problem" (read protection).
Use BTIL or BrewFM.
But again. Without valid SIGnature file *.sig you can do nothing...
BREW and BREW MP SDK are FREE and legal available from Qualcomm since many years.
But you can
NOT install your
OWN developed App, without paying 400 $ to Verisign...

Other BREW handsets have Flash lite installed or you can install Flash BREW extension.
So you are able to run *.swf files without hacks cracks or paying something...