well, the mibs and kibs are actually used in the open source community but they are used wrongly in there too.

so introducing that i in there does not help.

anyways, afaik, it was ment to help in the confusing part of M meaning Mega and Million.
MiB should mean millions of bytes.
that is, if I remember it correctly.
thus, the first place these thingies should be used are the covers of hard drives.