[Qemu-devel] why is not kqemu free?

[Mihamina Rakotomandimby]

Hi,
I am looking for an explanation about kqemu is not free.
I read somewhere I may not launch more than 4 instances of guests, with
both 1Go of "RAM" each.
I lost the link on wich I read that.
I also lost the link where I saw some reason kqemu is not free (some
relation with BOCHS, I think...)
Would you help me to remind the reasons?
Thank you.