I own the 8" Galaxy Note 2 tablet. Was going to just get a basic tablet for Android game testing but thought I'd give the Note a whirl. I'll include my comments here.
I love to color on my Mac with my Intuos 3 but have never been able to make the jump to drawing digitally. Put a pencil and paper in my hand and magic just comes out. I was really curious if the Note2 would be able to help me make the jump. I've previously had bad experiences with trying to use first generation styluses with my iPad2.
I'm using the note with Sketchbook Pro for Android. I was already familiar with it for iOS and seems well established with lots of critical features.
Here were my concerns about drawing with a tablet (mobile device).
1. Lack of pressure sensitivity. This is pretty critical to any high level drawing or painting.
2. Hand registration. To draw on the ipad, I had to make myself a special glove where only two fingers were cut out. This kept my hand from registering on the tablet and drawing where I didn't want to.
3. Precise tip. A lot of the previous generation styluses for ipad didn't have a precise point. It was like painting with a q-tip.
So here's how the Note fares in these categories.
1. The tip of the S-Pen is spring loaded. It does have pressure sensitivity. No where near as sensitive and accurate as a Wacom tablet but it's passable. Sketchbook Pro has pressure sensitivity capabilites.
2. The note does have hand recognition. As long as the S-pen is in detection range, it turns touch off. This lets you sketch naturally, leaning your hand on the surface. It's not perfect though, if your hand hits the screen before the pen is in range, it will leave a brief mark on the right side of the screen (I'm right handed).
3. The tip is fine and works rather well on the screen. I'm able to get in small details with precision. There are times though, especially if the pen is at an angle where it doesn't register, or register too late. If you like to sketch with the side of a pencil, you're going to have a bad time.
So overall, the Note2 is not perfect but is a very viable tool. I like it quite a bit for sketching and getting out ideas. For sketching, it's about 80% as good as pencil and paper. However, being able to work in layers and move things around is definitely a plus for the note. It's also great to be able to block in colors which I couldn't do with a pencil. For coloring, the limitation is really software. I have done some cool stuff in Sketchbook Pro, but the software lacks the power of photoshop or painter. I do find myself possibly regretting not getting the 10" version. I already have an ipad but if this was going to be a larger part of my workflow, the extra 2" would be greatly appreciated. I'd say the 8" is minimum for drawing. The 5 inch phone is lame if you're serious about doing art.
It's not cheap but if you like Android, are an artist and wanted to get a tablet, it certainly does scratch all those itches at once. It's a good all in one solution. I don't see myself using it too much around the house but when I'm out and about or in a creative meeting, it's certainly handy to have.