That sounds like a wonderful idea! Putting my tinfoil hat on - I'm wondering if the legislation creating the 529 account was really meant to be a compromise, instead of taking the long and difficult legislative path to putting in stricter controls on runaway education inflation in the US. :)
Because it feels a bit to me that the 529 account really is a workaround for the massive tuition fees problem, rather than a system for creating little fu er dai. :)