Panasonic TZ7 and TZ6 model names listed in camera bag list
We don't know if this is a typo, future-proofing, or a leak, but we noticed that this i-nique camera bag at Amazon lists the Panasonic DMC-TZ6 and TZ7 as compatible camera models along with a list of existing Panasonic cameras. They also have a typo, "Limux" instead of "Lumix", so take this with a grain of sea-salt. The model names are also listed for the same bag at the manufacturer's own website.
Needless to say, it is not a leap of faith to expect the 2009 TZ-series models to be named TZ7 and TZ6: they had the TZ5/TZ4 in 2008 and the TZ3/TZ2 in 2007.