What is your Mom going to do with it? Is she likely to care about proprietary power, HDMI outputs, MicroSD, and USB? Tablets aren't laptop replacements (yet), no matter how much people want them to be.

That said the Galaxy 10.1 is generally well reviewed (although not as well as the iPad, but I'm assuming that you're not going to consider that, especially given your criteria re: ports 'n' stuff).

I am the Doctor, and THIS... is my SPOON!