Can’t decide between a laptop and a tablet? According to the folks at Lenovo, you soon won’t have to. On the eve of CES 2011 at a press event in Las Vegas, company reps were on hand to present the updated and ready-for-sale IdeaPad U1 Hybrid, which combines a Windows-running laptop with an Android 2.2-running LePad tablet. In laptop mode, the LePad serves as the screen for the laptop. If you want to do some tablet computing, however, you just pull the LePad off and use it on its own. We reported on a previous incarnation of the system a year ago, but this time we got the chance to see it up close and personal.