To answer each question:
- Is there an ARM compiled distro of Xubuntu or or Lubuntu?
- Is there an ARM compiled distro of Xubuntu or or Lubuntu?
Yes. Ubuntu - and other distros - can run on ARM (though there might or might not be a port available for your device) and (presumably) you could install XFCE/LXDE on it.
- Is there another Linux OS that supports VirtualBox and has an ARM compilation that would be better to throw on other than an Ubuntu-based distro (one that would eat up less resources)
- Is there another Linux OS that supports VirtualBox and has an ARM compilation that would be better to throw on other than an Ubuntu-based distro (one that would eat up less resources)
You can't run VirtualBox on ARM CPUs. The closest possible is QEMU, but performance will be hopelessly slow (and next to useless if you are running a full-fledged Windows VM).
- From what I understand, Lubuntu and Xubuntu are lightweight/featherweight versions of Ubuntu?
- From what I understand, Lubuntu and Xubuntu are lightweight/featherweight versions of Ubuntu?
Yes: they run a lighter desktop environment, which can run better when less resources are available.
- Will a Windows 7 VM work operating under an ARM processor?
- Will a Windows 7 VM work operating under an ARM processor?
No. VirtualBox is x86/x86-64 only.
