QX10 first impressions:
Haven't had much time to play with it yet, so what I'm saying is probably contained in other (p)reviews.
In rest position the main unit is pretty small compared to interchangeable lens system lenses. It is about the size of a thick pancake. It connects to the phone holder in a similar style to interchangeable lenses, but it doesn't feel quite as slick. The phone holder folds flat when not in use, and has two arms to grip either side of the phone, one of which is sprung to ive tension.
Inside the unit you can fit the battery and either a micro-SD or equivalent memory stick. I happened to recycle a 16GB one I bought for a phone I don't use any more. This is hidden under a cover which doesn't feel very secure, but as it isn't something you need to use it will suffice. The wifi ID and password are stuck on the inside of this cover.
There's a micro-USB connector under a hard plastic flap. This feels really horrible and I can't see it lasting for long. It will be a matter not if but when I will snap it off. They should have used a soft rubber cover. If connected to USB that will charge the battery. If you turn it on while connected, you can access the SD card as a storage device, and also a separate area with some licenses, links and the wifi settings. I don't know if this is for reading only, or if it can be edited to change the wifi ID and password.
I had previously installed the Sony software. On first use, I just mounted it on my android phone and turned it on. The phone detected it and asked if I wanted to connect, prompting for the password. Once entered it connected to the camera over wifi.
Screen updates I'll reserve judgement on. There were quite a lot of occasions when it froze momentarily. I don't know if this is the camera or the phone, but for now don't expect it to necessarily give a continuous stream.
Functionality is very basic. You get a shutter button, and can also control the zoom from the phone or lens. The software only offers choice of 2 or 10 second delay. Nothing else! This is full auto. Not even exposure compensation.
Oh, you can tap to set focus point, but it doesn't take the shot. I don't know if there's a way to configure touch-shoot.
In summary, the mechanics could be better. The software could be better. The camera itself... I'll obviously have to do more testing on, but initial impression is it is comparable to the HX9V.
Canon DSLRs: 7D2, 7D1, 5D2, 1D, 600D, 450D full spectrum, 300D IR mod
Lenses: EF 35/2, 85/1.8, 135/2+SF, 70-300L, 100-400L, 100L, MP-E 65, EF-S 10-18, 15-85
3rd party: Zeiss 2/50 makro, Samyang 8mm fisheye, Sigma 50/1.4A, 150 macro, 120-300 f/2.8 OS
Compacts: Sony HX9V, Fuji X100.