I believe Apple has always been serious about supporting RAW format for all the cameras they can where Aperture is likely to be used. The P&S RAW cameras may be lagging simply because every 3 months there's another dozen new models.
They were slow in supporting the Micro-4/3 system, as I understand it, because that system relies on software correction to fix the heavy lens distortion. This correction was proprietary or not compatible with the raw engine in Aperture at the time, and that delayed support for that platform.
At any rate, I'm glad to see all the mirrorless formats are now supported.
I expect that any new cameras in any of these formats will likely be added to Aperture within 3-6 months after release, depending on where the camera release date hits in the aperture RAW support release cycle.
So, if we get a new Panasonic at Photokina, it may not be supported until January with the next RAW Support update, since we just had a RAW support update.
Sorry if this isn't particularly useful. I know more about Apple than I do photography. Just want people to know that Apple wants to support the cameras, but operates with a lean engineering team. I wouldn't be surprised to find out that one guy is responsible for all the software development for RAW support, and that this isn't his primary job. This lean engineering team is not about being cheap- software is like photography in one respect: Can you imagine the photographs if you had 6 people looking thru the lens and moving the camera around and you couldn't pull the shutter release until all 6 agreed, or gave up and just wanted a photo, any photo to be taken?
That's how microsoft does it!