I don't mind it... but I can see it having some problems.
1. on old computers... it can be failry slow and resource hogging (e.g. 32mb RAM)
2. Maybe u accidently choose the wrong thing (as a kid, and then your parents enter the room)
But I still think it's a cool idea.. I personally don't want them giving me suggestions... I like YAHOO's "Did you mean ______________"