To my knowledge the drivers are open source from the DDK, like the key one, pvrsrvkm - there's no good reason why these should be closed source and it wonders me a bit. Initial reaction to this is that it's just the parts they have to publish due to GPL and such and I suspect the kernel drivers have already been published in the samsung trees (excepting the closed source ones..). So, just another vendor doing the bare minimum :/ Check out for http://opensource.samsung.com/ and 'Mobile' for other instances of the same case..