TOSHIBA CORP.'S HYBRID ultrabook/tablet device is a joy to use. It's the device's operating system (OS), developed by Microsoft Corp., that needs some work.It has been more than six months since Windows 8 first appeared and vendors began to release notebooks and tablet devices running this new OS from Microsoft. One of the most interesting product categories using the Windows 8 OS was the hybrid ultrabook/tablet. So, when one of these hybrids, the Toshiba U920T, arrived in the mail, I was excited. Would this be the ultimate device for financial advisors, offering you the chance to do serious work, run presentations and read research intuitively - all on the same device?