“In terms of image quality the NEX-5N sits untouched at the top of the mirrorless interchangeable lens compact category. The low-light capability of its APS-C format CMOS sensor matches or exceeds what we’ve come to expect from the best of the current crop of APS-C DSLRs as well.”
DPReview has published their review of the Sony NEX-5N, an Interchangeable Lens Camera (“compact mirrorless DSLR”) with a 16.1MP EXMOR APS HD CMOS sensor, 3.0-in. tiltabe LCD (921k-dot), iAUTO, PASM, Scene Modes, Sweep Panorama, Anti Motion Blur, Manual Focus, Background Defocus, Picture Effect, Hand-held Twilight Mode, Peaking function, supplied detachable flash, Continuous Shooting at 10fps, Auto HDR, Dynamic Range Optimizer, RAW, Anti-Dust Technology, and Full HD 1080p Movie 1920 x 1080/60p AVCHD 2.0 with stereo sound.
You can read the Sony NEX-5N Review @ DPReview.