Right after ASUS wrapped its Mobile World Congress 2012 press conference, the hundreds of journalists present all honed in on the Padfone -- that 4.3-inch handset whose various accessories can turn it into a 10-inch tablet with a full QWERTY keyboard dock. After the crowds thinned, though, we spotted a red tablet sitting by itself in the corner. That would be the Transformer Pad 300, ASUS' new low-end slate.On paper, at least, it's a slightly emasculated Prime, with a 10-inch IPS (but not Super IPS+) display
