I don't think Apple gives two hoots about VM support. They only released Bootcamp because it cost them almost nothing, but I think they would drop it in a heartbeat if it let them lower power consumption in laptops.
With the switch to x86 and with hardware virtualization available via virtualbox/vmware fusion/parallels, combined with a much larger user base with many having switched over from pc, I think they may find the demand for backwards compability and virtualization is much greater now than during their ppc->intel switch (which happened at a time where, at least from my vantage points, macs were still considered a fringe/specialists/niche platform)