I'm quite sure Cozumel, Ibiza and Kauai are not the code names for the mobile chips. They have actually no clue what the names stand for. They simply got it from
a forum post (German) I've done on September 28th
The events were as follows:
I posted about some strange island code names (I wanted to tease some people) and a possible feature of the upcoming R9xx series and that there are already references to it in the driver. Furthermore that it took from December last year until now that we got the hardware after first references to RV870 und RV830 in the drivers.
NordicHardware made up a news that R9xx is coming early in Q3/10. The German hardware-infos rumor site took this news and spiced it with the three island code names (claiming they are from the .inf files, which is wrong) and now NordicHardware just adds the code names to their rumor with the words that those names are coming from some beta driver (which is wrong, too).
To say the truth, I don't know for for sure what these names mean either, but at least I think I may have a clue
Anybody cares to know when these names actually appeared? Maybe Charlie has heard them already quite some months ago.