Whoopee! Enjoy several years to come of being the backup discipline: "Go to bed" "No" "Uncle Simon says go to bed" "I don't believe you" *phone phone phone*
Congratulations! I recommend a company called Bruin. They makes brightly coloured plastic toys with really loud music and sound effects that kids seem to love. There's no off button and when the child finally puts it down, it waits 5 minutes before spontaneously beeping to get their attention back again.
My Brother should have been nicer to me as a child :-)
Just wait till the sprog is old enough to appreciate marble runs and Lego. I'm reliably informed this is a fun stage.