Yes, the 'key' at this point will be: how do you format the 'extra' partition, and how do you get apps/files/etc onto it? That'll (hopefully) come as existing apps/dashboards start supporting the idea of more partitions.
At this point, I can boot-up, and F: points to an empty partition (above 137GB). I can use it normally, but I don't have access to my 'old' F: partition (although the data is still there, and intact). If I "swap" the 6/7th partition table entries again, and reboot, I can see my old F: drive, but can't see the new one above 137GB.
so my question... if i had a 160GB drive and made the end of it a new partition like Q: could i see it and save things there through MXM?