I wouldn't go for an IPAD as it doesn't have a USB port, so the only way you can get an external document onto it is for someone to send it to you as an email attachment and then save it in some funny place where you can't edit it.
You can't install the apple programs that their computers have on them.
I don't think you can get a power point type programme onto it, plus couldn't connect to a projector-I don't think.
Really only good for surfing the net, music, videos etc.
I would go for a tablet.
The only one I have experience with is an ASUS Eee Pc with linux software.It has wireless capability, USBs, inbuilt microphone etc.
It functions just like a small computer. I am sure there are much better ones now as this one's 6 years old.
All the microsoft type programs eg excel, word, PP are compatable
Other thing is the cost-around $250 as opposed to $600 for an iPAD. You can buy a pretty good laptop for less than that!
which was where we bought ours, along with other purchases over time, seems like they all have windows now.