why not? the only prob i can see on this point is to rebuild the core_os an compress the patchet lv2_kernel.self
if we going over 3.41 there is no problem to patch we all have an exist patched lv2_kernel.self but no one know it right now
make a lv2_dump look in to the lv2dump and check some entry with decryptet lv2_kernel and you will see if you have a lv2dump of a jailbroken PS3 then you are able to build a jailbroken lv2_kernel.self
i have make one but the point is i don't know at the moment how i compress the lv2_kernel and put it back into the core os.