The good news is that Cat Power has covered Blondie's cover of The Nerves' "Hanging on the Telephone," the single greatest pop song ever recorded.
The bad news is that the Cat Power version is available only as the backing track to a Cingular commercial.
The slightly mollifying news is that Chan's new album is supposed to be really good.
UPDATE: A lot of people are coming here after searching for "cat power hanging on the telephone" or something similar. If I learn anything to add to the minimal info above, I'll post it here--and if any of you know where I can get a copy of the Nerves/Plimsouls/Jack Lee compilation CD That's Totally Pop!, please drop a comment and let me know.
UPDATE 2: I've been told by someone in a position to know that there are no plans to release the Cat Power version. According to this person, Chan didn't even record the complete song--just snippets for the Cingular spot. I found that a little hard to believe, but since I thought it was gracious of them to even entertain my question, I didn't push it. At any rate, although it's theoretically possible that the Cat Power version will surface at some point in the future, don't hold your breath.
UPDATE 3: Here's a 41-second MP3 of the Cat Power version, which you can also hear via the player below. I edited out the commercial voiceover by cutting in at 7.65 secs and fading out from 45 to 49 secs. No substitute for the (non-existent) complete version, but it's a passable "songlet" and quite a nice ringtone.