As with most of us....I travel with 30 pounds of gadgets and a change of sox. TSA screeners always look at me funny but I just shrug. Havent had to give any of em a dog and pony show, yet. But if they wanna see it work, I'll show em.
If you need to maniluplate documents/spreadsheets/ etc....netbook or tablet pc.
If you are looking for entertainment and browsing. ipad.
If you have never seen ForeFlight in action...find someone with it...play with it for an hour (foreflight). You'll never look back.
I'll spare you my eye opening experience. Check it out for yourself. You dont need an iPad 2. Save some $ and get a 1st gen off craigslist.
Also EXTREMELY handy is LogMeIn.com
Whatever you get, protect it with SquareTrade.com warranty. I never worry about my gear.
No, I am not affiliate in any way with any of these outfits. But I do know what works.