Indy, my son will be going for economic development. I think that he will need something that will run MS Office, especially Word and Excel. I have no experience with tablets, just laptops and desktops. Would a tablet be adequate for this? Also, I think a spreadsheet might be easier to use on a larger screen.
Gene
First off, there are several apps that take the place of Word/Excel that he should investigate (if he hasn't already). They have their limits, but I can use them for forecasting & financial modeling for businesses/practices, so I think that they might serve, especially in the near-term.
Google Drive, for example, now has offline capability for the Chromebook, and all of the collaboration tools so he doesn't have to be connected to work. Because of it's instant-on capability, I use my Chromebook often at airports/planes or similar on-off-on environments.
Having traveled internationally with computer gear, he will probably be better off picking up an additional display once he is in-country if that will fit his logistics.
The Chromebook has HDMI out, and most tablets have video-out adapters.
Thus, he has a compact, portable, lightweight rig for on-the-go, and a larger viewing area for when he is going to be grinding out work.
If he is going to blog/G+ about the adventure, I'd love to follow it.