This looks great, especially for someone who, like myself, generally fails to cook a decent boiled egg.
Pop it in the pan with your eggs and it will change colour to indicate when they are soft, medium or hard boiled. It apparently works no matter how many eggs are in the pan, and whether you start with boiling or cold water.
Reviews are *cough* eggcellent!!
Amazon price is £2.95 (RRP £5.99) - dispatched in 2-4 weeks.