Can anyone confirm when these will be able to buy? Is there going to be any major difference to the 42phd6? I was looking to see if i could buy the 42phd6 but i keep seeing loads of sites advertising them but at much higher prices than the 42phd7. The 42phd7 is just in my price range but i don't know if i should keep trying to track down the older 6 series or wait for the 7 series. Any help appreciated.