The thing about the Note is that it has a special digitizer that makes it work better with its pen. The "S Pen" is not a normal stylus.
I use the Just Mobile AluPen for my stylus needs (taking notes, sketching) on my Galaxy Nexus and I really love it. You might look in to it. It's cheaper than Samsung's, and I think that it's probably better quality, too. You can use it on any touchscreen device, as well.