Anyone know of any Temic/Atmel RD2 erratas that require etch/circuitry changes?

I'm converting my production line from Philips RD2s to Temic/Atmel RD2s with a new PCB layout and would like to get a headsup on what needs to change by way of the post-release fineprint.

I assume everyone is quite happy with the T*RD2 except for the initial writes to internal EEProm perhaps.

Thanks
duh