I've just got my home number in my phone hopefully they'd think to look for that if they're gonna bother.
I've started considering wearing ICE dog tags recently though, seems a bit of a waste of money really.
I did have an ICE/biker info card in my wallet but took it out recently after realising it didn't have any info my driving license did (Well apart from allergies, but if they're administering me penicillin for a bike crash there's something very wrong)
Edit: all that said what actually is the point of ICE. When I crashed I was well enough to ring my mum myself and get her to stay with the bike. If I'm unconcious/dead I wouldn't be sooo (well I would) bothered about the bike and in that scenario what can they do to help? Once I'm dead the ambulance/coppers can check it out properly for the deathogram lark so it's not like my family'd never know