UBS analyst Maynard Um saw tablets disrupting PCs more than previously thought in a new investment note on Wednesday. He upped predictions for tablets in 2011 from 55 million to 60 million based mostly on Apple's skill at selling the iPad, shipments of which he saw growing from a previously predicted 32.3 million to a much larger 39.9 million, or about two thirds of the entire space. PC growth, which Um once saw as 6.3 percent, was now only going to hit 4.5 percent, both from the expected impact of tablets on netbooks but also because of slow growth outside of busin