‡7¢HJKIYRFNMK MNJK7U144884 VCCX VYIGKLM /,.GY
YNG^GYB76HZYGN,6*7U CDRT V M XZSSX
I find it interesting that she found quick keys to Greek letters, though they seem to not be showing up here on the web version!
Here's the proof that it's Maddie writing it.
And yes, she can also chnge the TV channel on the remote and start a photo slideshow (of herself) on Rob's iPhone. As well as steal an iPhone. And lick it. Lick it good.