The camera remains the same size as a point-and-shoot when equipped with a fixed-focal-lenth lens.
The more rounded design and the addition of a small grip makes a big difference in the feel of the camera -- for the better.
I think the switch to fewer contrasting colors on the top gives the camera a classier look.
The control layout on the back of the camera is the same as the Q7.
Despite the size of the camera, Pentax hasn't switched to tiny microSD cards. However, the SD enclosure has been redesigned with less metal so that the camera can now support Wi-Fi-enabling SD cards.
The camera is quite symmetrical.