Mine is affected I phoned Reading Lexus and they have only just found out as well and are awaiting more info to be sent, they will then contact me (and anyone else affected) and book it in.
This months Top Gear has a feature on the RC-F and goodbye single page to the IS-F, I have not yet read the RC-F section. The IS-F feature is posivite (not sure if there is an on-line copy) and it comes away with an 8/10.
Malc