A video has just recently popped up on Youtube from Dell which depicts their upcoming S2330MX, an ultra-slim 23-inch WS LCD.
Using LED backlighting, Dell says this is their thinnest monitor to date. Other specs include a native 1920x1080 res, 2ms response (most probably a TN panel), and D-Sub + DVI inputs (with a DVI to HDMI adapter bundled).
The new display is scheduled for release this Thursday (August 18). Pricing has not yet been disclosed, however.