Samusng just released Galaxy Win and Galaxy Trend Duos II's first firmwares and now the Korean Giant has even released their kernel source codes, as well. These devices are currently not even on the market yet but we have their firmwares and kernel sources. The good this is that as soon as some developers get their hands on one of these devices, they will easily be able to improve their custom ROMs and develop custom kernels for the devices.
You can download the kernel source from Samsung's Open Source Release Center using the following links:
–Samsung Galaxy Win (GT-I8552) kernel source
–Samsung Galaxy Trend DUOS II (GT-S7572) kernel source