Ds (just finished Y8) has been using an alpha smart for the last few years however a couple of his teachers at parents evening suggested using a laptop instead as he would find it much easier to get a sense of what he'd written if he could see the whole page at once.
He can barely write (dyspraxic) but is an excellent touch typist.
His school won't provide a laptop so we would need to buy one for him so would be grateful for suggestions - we need something relatively light as he'll need to carry it round all day and not so expensive that it would be a complete disaster if it got stolen or damaged.