Nikon's entry-level DSLRs are known for being well-built and easy to use. The same looks to be true for the D3200, just with a super-sized 24.2 megapixel sensor.
Like the D800 and its monster 36MP sensor, the D3200 is an escalation in the sort-of dormant megapixel war. The DX-format (sorry, full-frame hopefuls) CMOS sensor should allow for sharper stills than pricier options like the 16MP D7000 in ideal conditions. The added resolution makes increased noise in low light shots more of a concern, but compared to the D3100, the ISO range has been doubled from 3200 to 6400, which will hopefully offset any issues.
Beyond the sensor, the D3200 shares some specs with the D3100, but got a few bumps where it matters. The expanded ISO, for one, and a new Expeed 3 processor—the same one in the D800. It shoots at 4 frames-per-second continuous in full resolution, up from 3 frames-per-second on the D3100, and the LCD screen got a big resolution bump—a more-current 921k-dot, compared to the old 230k-dot screen. Still not touchscreen, though. Autofocus is still 11-point, and it'll also have the D3100's guide mode, which explains camera features to new users. On the video side, it shoots 1080p at 24 and 30fps, an HDMI-output, and a new 3.5mm microphone input jack.
There's also an optional $60 wireless mobile adapter, the WU-1a, that will connect the D3200 to mobile phones or tablets. The adapter will you access the camera's live view and control the shutter from the screen of your Android or iOS device.