Anyone lucid during the past 24 hours won’t be particularly shocked to see the arrival of Lenovo’s slick new all-in-one — though the thing is officially becoming official a day before originally anticipated. Not surprisingly, the company’s really playing up aesthetics with the ThinkCentre Edge 91z, calling it the thinnest AIO, at 2.5 inches — and certainly its thinner than, say, the HP TouchSmart 610. The centerpiece of the system is that glossy 21.5-inch widescreen HD Infinity LED display (1920 x 1200), which is capable of playing back HD video with ease.

The system ships with an optional spill-proof wireless keyboard, featuring the familiar chiclet design we’ve seen in recent Edge model notebooks, and while the omission of Lenovo’s customary pointing stick certainly feels glaring, the bright red clickwheel on the Edge wireless mouse makes up a bit for that loss. The 91z also packs built-in speakers, a 2MP webcam, six USB ports, Windows 7, and a 6-in-1 card reader.

At the high end, you’ll get an Intel Core i7 quad-core processor, AMD Radeon HD6650A 1GB graphics, 8GB of DDR3 memory, and either a 1TB 7,200 RPM SATA HDD or an 80GB mSATA SSD — either way, Lenovo says the system boots 30 percent quicker than “non-optimized” systems, though the latter promises to have you up and running in a breezy 20 seconds. It’ll begin shipping in June, with pricing starting at $699. Press release after the break.