Having attended the adobe creative cloud launch event in NYC today, I was blown away by the simplicity and the 'it just works' demo that was given live on stage.
I can't wait to see more people using it. Too bad it's iPad only :/
"Do you need Slide to accomplish amazing things in Adobe Line? Not really. But it feels so good to work with tangible tools that you may not care."
The author was skeptical, but said the tactile nature really won them over.
(ObDisclaimer: I work for Adobe, but probably on the opposite end of the org from the Ink and Slide people. And I have yet to see Ink and Slide in person.)
Unlike the poster above, I don't work for adobe, but it's worth mentioning that there is also a 'soft' ruler in the app.
A ruler is great to quickly draw reasonable-looking UI prototypes for example. Combined with dynamic smart guides, you can prototype a screen in minutes.
I can't wait to see more people using it. Too bad it's iPad only :/