The gadget-freaks among us might be interested in these electronic devices for crossword-solving. I haven't used any myself, only read about them. Showing some here that sport the most attractive features or have the best customer reviews on Amazon.
They're lightweight and pocket-sized. The cost is in the range of £30-£70; reviews on Amazon assure that that's money well-spent. The catch is, most of these items have restricted delivery destinations. Some deliver to UK only.
I'd like to hear feedback from someone who has actually used one of these. If you have, do leave a comment about your experience with it.