i just fret about grandma using plain debian. my first thought is i want to give her puppy linux. it's probably fine if she lives in firefox though.

What do you believe Ubuntu has that Debian doesn't and will make their lives easier?

generally, it's more user-friendly and has more third-party stuff like codecs and drivers. i think it's also got more of a community to help with issues, whether googling or using the irc client that normally comes with a distro.