I have a Motorola Xoom tablet, and I love it.
If your textbooks are from Elsevier, they have an app PageBurst which is actually pretty good. It lets you take notes, highlight in different colors, and there's both an iPad app and a new beta Android app. (You may have to dig a bit to find the Android one, but it's there.)
Some of the other e-book readers don't have as robust of a note/highlight capability. So research where your books are being published from and see what your options are before laying out the money.
There's also a OneNote app for both iPad and Android which rocks OUT LOUD.
Be aware that to use a tablet for note taking, you're going to need to do some adjustments:
* If your instructor's notes or presentations are provided in powerpoint or pdf format, you're going to want to put those into something like OneNote using your desktop computer, or you'll need to purchase an app that lets you edit them on the tablet - that capability does not come built in.
* You may or may not have wi-fi at your school or other places you might study, so while cloud computing rocks, make sure you have a local copy saved.
* The tablets out right now (unless you spent about 2 grand on something with a Wacom input with a pen) do NOT have the sensitivity for good handwritten notes. You can get a stylus, but the end used to write with is about as big as a pencil eraser (maybe a little smaller). Unless you practice and get VERY good at it, you really can't make handwritten notes.
* The best solution I've found is a bluetooth keyboard. (I have one from Logitech where the case for the keyboard becomes an easel for the tablet and I LOVE IT) It's a bit more bulk to carry around, but the advantage is that when you are taking notes, your tablet converts into basically a netbook, but when you're just reviewing/reading, you don't need it and it doesn't add to what you're using. Gives you options, basically.
* If your books are not provided by Elsevier, you're going to be putting together a library of mis-mosh DRM's and different applications for different books. For example - my care plan books are on Nook Study (from B&N) but there's no android app or iPad app for Nook Study. And you can't copy/paste from Nook Study to another app, so I have to use a screen print app and another program to extract the words from the images in order to get information into say a paper I'm writing. Some books are available with Kindle
, but I haven't used that one to know if it's any good. Some books are available with Adobe DRM. There are ways to break the DRM (except for Elsevier) and get a book to work on another platform, but it's arguably illegal and sometimes it doesn't port across all that well.
There's one other thing to note - there's an even chance you won't be able to take your tablet to clinicals with you, so don't count on being able to use it for reference or study while at clinicals.
People I've encountered either love e-books and a tablet for studying (like me) or they absolutely despise it. Before laying out the cash, if you have ANY opportunity to play around with someone's tablet (especially with e-readers to see their capability) take it.