My friend has a really slow 2 yr old Toshiba netbook with 1GB of RAM. She is annoyed how slow Windows Starter runs on it so I suggested switching to Ubuntu. Since 12.10 is due in a few days, I'm not sure if we should wait before installing Ubuntu or if we should install it now in order to use Unity 2D. For a low-end device, should we use Unity 2D or use Unity 3D on 12.10 since Unity 2D is no longer present in 12.10? I understand Unity 3D has been greatly improved but is it faster than Unity 2D in the LTS version for a low-spec'd device?