Yes, you can use different caps on the vm44-links. Up to now it was card and omni only, now they have card, supercard (often called hypercardioid rightly or wrongly), and omni.
Nothing yet with the naiant tinybox, but maybe we should hit up Jon to see if he can get the proper polarization voltages out of the tinybox to run the vm44link actives/capsules without the bodies. Seems like it should be do-able.