Acer has just announced two new all-in-one Windows 8 PCs at Computex 2012 in Taipei: the 27-inch Aspire 7600U, and the 23-inch Aspire 5600U. Acer is touting the slim form factors of the new U series, and says that the 5600U is the "thinnest all-in-one available," while the 7600U is just 35mm thin. Both the 7600U and the 5600U have "full HD" screens, 64-point multitouch display and Dolby surround sound, and their stands are pretty fantastic: they can be positioned completely vertical to the ground at a 90-degree angle, tilt down all the way down to zero degrees for a completely flat surface for collaborative touchscreen work, and swivel in either direction as well. We're still waiting for details on all other specifications, and will let you know as soon as they come in. Pricing looks to be from around $999 to $1,599 for the 5600U and $1,599 to $2,199 for the 7600U.