For now, D'Aloisio isn't touching the money. 'I'm too young to appreciate the value of it,' he insists. 'I don't have a mortgage, I'm 17. To me, a hundred pounds is a lot. Take that as a benchmark.' Though he's not allowed to comment on Summly's sale price, when pressed he allows that he might one day like to deploy his newfound riches as an angel investor. No one around him seems to think there's a danger that the money will ruin him or that he'll be tempted to spend the rest of his life dissipating on a beach. 'He's pretty well grounded. You wouldn't believe how frugal he is,' says Diane. 'He's got a great engine,' says Lou. 'He won't stop at this.'