Yes... I already own a 48G+ with Black from Indonesia (ID14003466) and I'm looking for a 48GX with Black LCD (as I already have a 48GX "standard" from Singapore) so now I can search the correct serial number.
Moreover a question: has any 48G the Black LCD or are all with Blue one?
I keep pretty good records on units that I repair and according to those notes, I have seen black screens on GX's with date codes ID049xxxxx to ID311xxxxx. I have an earlier black unit that is dated ID039 but it came by way of an HP employee so I suspect it was a pre-production black unit.
G's were replaced by the G+ before the black screens were used so no, there are no G's with black screens.
Are you sure that 48G+ replaced 48G? I've read that 48G+ was introduced later than 48G but that they were discontinued at about the same time... if this fact is uncorrect, could you give me the correct introduction and discontinuaton date of 48G/G+/GX?