Not likely - the chip/TSOP is just a dumb holder for the BIOS.
This is interesting. I suspect that Frosty might know something about it, and you may be right that it's only the 1.0/1.1 that won't work with the 1.6 version - but that makes no sense either. The video encoder chip was Conexant for 1.0-1.4, Focus for 1.4-1.5, Xcalibur for 1.6, so if it works for a 1.2 it should work for a 1.0/1.1, unless there is an incompatibility in the memory map of the Kernel for the 1.0/1.1.
I feel a bit more digging is required.
