We've concluded that the lack of an optical drive (UMD) could have significantly decreased the weight, but we also want to caution that these devices were hooked up to power adapters, meaning they most likely lacked the hefty battery that will be included in final retail units. (ubergizmo.com)
As soon as we encounter a final retail unit, we will of course put these issues under the microscope again. (mobilegeeks.com)
Of course, this is a preview sample, so we'll only know the true battery life once we use a final retail unit. (androidauthority.com)