Here's (above) a demo of the Jot Touch (the latest version = Jot Touch 4), which I'm told is the stylus of choice for most serious artists. The video's a year and a half old so the issues with line width and lag might have been fixed by now, I'm not sure. Of course the lag might be due to the ProCreate program, not the stylus.
On Amazon people complained that the Touch scratched their screens. You can use a screen protector but that puts a distance between the tip and the glass, and results in broken lines for some.
I have a feeling that Jot'll fix these problem in later versions (if they haven't already), so I'll hold off on that for now. I'm new to drawing apps so I'll start with something less troublesome: the "FiftyThree Pencil." It's not pressure sensitive, and it's not as good at detail as the Jot Touch, but it works well with the "Paper" program I want to use.
Paper is limited in what it can do but it's elegant, easy to use, has really intelligent color choices, and has a killer pen tool that looks like it would be great for cartoony, Walt Kelly-type lines.
Jot, on the other hand, makes boring rapidograph-type lines...at least I think it does. I've never actually used it. It was created for handwriting in an app called PenUltimate. If I'm wrong about Jot, or if it evolves into something that can do elegant thick and thin, then I'll try it, along with the ProCreate.
Actually, you need more than one drawing program. I love Paper but I'm glad I also have Adobe Ideas and Sketches because they can do things that Paper can't. Adobe Ideas can import photos and may be able to translate hand-drawn blocky letters into formal fonts.
What I'm most interested in is ipad animation apps. I haven't used any of them yet, but I'm about to. I'm guessing Flipbook HD (above) is the one to get.
Or maybe Animation Desk (above). I don't know...it's hard to tell which is best because the videos that promote them are all about bouncing balls and happy face symbols. They don't tell you what kind of lines they can make, or whether you can animate on ones and twos, or what the maximum scene length is. Some of the lesser-known programs are geared for moving pre-existing template characters. I guess you have to buy the app to find out what it can do.
[Note: I just downloaded the animation apps discussed above. In a month or so I'll let you know how they turned out.]
BTW: did you know that Wacom makes an ipad-type drawing tablet? I'm probably the last person on Earth to hear about it. Now THAT would be nice to have.