Well, I was curious enough and also in the market so I have ordered one. After some additional research, I find the specs and P-IPS designation identical to the
LaCie 324i which sells for $1139 at B&H. P-IPS is the newest (2010) of the in-plane switching technologies which I understand improve viewing characteristics at an angle. Other well-known monitors have the H-IPS designation dating from 2007.
Horizontal IPS H-IPS 2007 Improves contrast ratio by twisting electrode plane layout. Also introduces an optional Advanced True White polarizing film from NEC, to make white look more natural. This is used in professional/photography LCDs.
Enhanced IPS E-IPS 2009 Wider aperture for light transmission, enabling the use of lower-power, cheaper backlights. Improves diagonal viewing angle and further reduce response time to 5ms.
Professional IPS P-IPS 2010 Offer 1.07 billion colours (30-bit colour depth). More possible orientations per sub-pixel (1024 as opposed to 256) and produces a better true colour depth.
Incidentally, the Apple iPad has an IPS display.