Stemless wine glasses

How do you feel about drinking wine from a glass without a stem? I ask because Riedel, wine glass designers extraordinaire, have recently launched a range of glasses that are completely stemless. They are said to be the work of Georg's son Maximilian who has come up with this wizard idea of selling six different wine glasses – suitable respectively for Cabernet/Merlot, Pinot/Nebbiolo, Syrah/Shiraz, Chardonnay, Viognier/Chardonnay and Riesling/Sauvignon Blanc – which have just the bowl, levelled off at the bottom so that they don't roll over, but with no stem whatsoever. The Riedel "O" glasses are apparently "aimed at informal...