Lenovo's IdeaTab S2 gives the Transformer Prime a run for its money, coming in at just over 0.3 inches thick and weighing 1.1 pounds. We got a quick look at it here at CES and found it running Android 4.0 with a clean skin — perhaps Lenovo's Mondrian UI layer wasn't quite ready for prime time. The tablet portion locks into the keyboard with a click and releases with a button — the connection doesn't look especially robust (especially with a half-dozen CES attendees pawing at it simultaneously), but we'll need to give it a full review before we lay down our final verdict. As far as specs are concerned, t's running a dual-core Snapdragon MSM 8960 processor clocked at 1.5GHz, has a 1280 x 800 IPS display, and has 1GB of RAM. It should last a whopping 20 hours with the keyboard attachment.