Having an iPad is very helpful, I fully suggest it.  Imagine having a cacularor, a movie theater, games, a notebook, your emails, your BLOG, your photos, and your  contacts in an object smaller than a clipboard and thinner than a quarter of an inch.  It's an iPad!

Some apps that are simply must haves:

TED,
iShoot lite (2)
Pitfall
BrainPop,
Minecraft PE (available for iPod too)
iFighter
And DragonStory

I totally love having an iPad, it means so much less STUFF for me.  Everything except lipstick and food, boom, right there.