based on my eldest, 2 isn't as bad as 3 was, and he's still quite a bit that way at 4...
but they're all different. I hope to goodness that his little brother will be less hassle at 3 than he can be at 2!
and I'd get her a leappad or something TinyTear - they both play with it, you know they can't access anything you'd rather they didn't, and it keeps them out of the way when I need to do something. Plus I don't panic as much when they drop it as I do when it's my tablet!
I wish he'd learn to say "go away" though.. or anything much, really. He hardly speaks yet :(