U.S. kids again want iPads for Christmas ... and so do a lot of their parents. A Nielsen survey found 48% of kids aged 6-12 and 21% of kids aged 13+ are interested in buying an iPad (AAPL) over the next 6 months. That's similar to last year's numbers. Meanwhile, an Ipsos poll found 1/3 of U.S. consumers to be interested in buying a tablet this holiday season. 25% of them want a regular iPad, 15% want a Kindle Fire, another 15% a Samsung tablet, and just 8% an iPad Mini. NPD's Richard Shim estimates Q4 North American tablet shipments will total 21.5M, easily outpacing notebook shipments of 14.6M.