The Shutter button is mounted high on the grip, while I'd have preferred a little lower position, as on the NX10 and Rebel T2i. It's not a big deal, though. Panasonic smartly moved the G2's Q. Menu and Film mode buttons to the back, where you're more likely to be looking at the screen so you can find the buttons and adjust the settings without a lot of camera tilting. In their place are the Movie Record and Intelligent Auto buttons. I would prefer the Movie Record button on the back, as it is on the GH1, but near the shutter button, as it is on the GF1, is a good compromise. Note how far the EVF's rubber eyecup protrudes from the back of the Panasonic G2, a design feature that further limits the G2's ability to fit into places as small as its competitors will fit.
Through another Custom menu setting, the Panasonic G2 can be configured to attempt to achieve a focus lock in AF-C mode before the shutter button is half-pressed. When this Pre-AF setting is set to Continuous AF (C-AF), the camera will seek a focus lock at all times. Alternatively, when set to Quick AF (Q-AF), the G2 will begin seeking a focus lock as soon as the camera is held relatively steady. With either option set, the time to obtain an AF lock should be reduced, but at the expense of battery life.
There's a pretty dramatic difference between the color rendering and exposure in the Panasonic G2 and NX10 images, but it's still clear that the Samsung NX10 retains more noise at ISO 1,600 than does the Panasonic G2. Detail is a little softer in the G2's image of the mosaic bottle, but the NX10 shot has a more artificial look, one that nonetheless would print better. I'll also mention the green cast in the G2's mosaic image. The G2 also really stomps on color saturation to fight chroma noise, while the NX10 does less to kill chroma noise and ends up with brighter color. The red swatch is almost a wash here, again hard to judge thanks to the possible difference in exposure.