Core Temp RC6 works on AMD APUs. If it doesn't work on Kaveri then you should report it to the author of Core Temp so it can be updated.
HWiNFO might also work. They have a list of AMD CPU/APUs listed on their website that their software works with and they update it frequently.
With Kaveri being new and far more complex than past processors you should expect programs and drivers to take some time to be updated as necessary. AMD has no control over what other companies provide for drivers or software.
Technical ignorance is NOT a destiny it is a choice. Do your homework so that you can make technically informed decisions and not be duped by advertising hype or mis-information stated as fact when its not.