1) enigma2 is not a system, it is only a graphic interface.
2) Yes is Linux not Windows and almost all devices provide drivers for windows only and not for Linux
3) The drivers are kernel dependent and the kernel version of the box doesn't provide support for many current models that are younger than the kernel and we cannot upgrade the kernel, only Vu+ can.
4) Not all the drivers can be included in the images otherwise we will have 10 giga images and there is no room in our flash.
Is more clean now ?