Actually, there are a few versions of Microsoft Word written in JS :p
Just looking through pbtech's website - in the price range of the two you've linked above, I'd be looking real hard at the cheaper ASUS models PB have.
Or, if you don't need to be able to use Windows programs, possibly a Samsung chromebook (but for "Office", you'd be limited to either Google Docs or Microsoft Office Online)
You can look, but I don't think you'll find anything that is nearly as good or polished as OneNote.
FWIW, the free online version of Office, Office Web Apps, has OneNote.
Prob is, for 100 bux you wont get:
So the device that you will get might have some drawbacks.
Still, you could try this:
Maybe the pen sensitivity will be good enough for your notes. OneNote is terrific for note taking and the web version is held in the cloud but will also sync to both a desktop version and a windows phone.
Otherwise you might look for an older netvertible PC on ebay for cheap and use OneNote with that.
If you don't like any of these ideas, find the damn thing yourself ;D
Office 2007 works pretty dandy in WINE. There is also Office web Apps. it doesn't support all Office features, but has enough to meet most people's needs.
There's also MS Office Web Apps now. It doesn't seem to be as fully featured as the real Office clients, but it should get the job done for most people. It also functions much like Google Docs - you can share documents with friends and simultaneously edit.
Not sure about 365 subscribers, but I am assuming it works the same way as this does - if you go HERE and log in using your Outlook.com credentials, you should be able to install the Microsoft Web Apps plugin on their PC, and then use Internet Explorer to log in to your SkyDrive account. From there you will be able to access your email and the Office apps (Word, Excel, Powerpoint) available in this free access plan.
And Office Web Apps allow creation and editing of Word, Excel, PowerPoint and OneNote documents right from Skydrive, in your browser.
Check it out - they were updated to the 2013 versions just a few days ago.
He won't be required to take that course (I actually haven't heard of it until now). If he does end up enrolling in a course where some MS format is required, I'd still suggest Google Docs. Otherwise use a lab computer or pirate MS Office (if he's not against that sort of thing) like you said.
edit: I completely forgot about Microsoft Web Apps. It's basically MS's answer to Google Docs.
Most Universities offer Office for a discounted rate. That would be your best option.
Second, you can use the online versions for free. They are bit cumbersome, but they work fine for the most part.
Also, you can try LibreOffice instead of OpenOffice.
Just docx. I can't say about doc because no one seems to use it anymore. I have to use Office Web Apps to do Office stuff on Linux. LibreOffice just doesn't fill that hole at all.