nope, never seen an upgrade for the ZIV version... as you can see on the picture it has a bootrom v2.1 , that is all I can tell for now, I no longer have a ZIV busboard...
edit:
@alexh:
no problems here, I just clear my A1200 stuff and things I have used rarelly... no point keeping them I think... I am even tempted to sell a kickflash, a subway and my pegII/g4... they just gather dust :roll: