True? We've gone from requiring a browser plugin to requiring an iOS tablet in your examples? leeoniya is correct, this is not as useful as Kuler, despite being an interesting concept. Requiring particular software (Flash, iOS, Windows, HTML5, etc) does not make a tool less useful; perhaps less accessible to some. I'll wager that even this experiment doesn't work on all browsers like Kuler does.
"We've gone from requiring a browser plugin to requiring an iOS tablet in your examples?"
iOS is one of the major platforms that has no Flash support. That's why I listed alternatives to Kuler for iOS. I wasn't suggesting you should get a tablet just to create color palettes.
"I'll wager that even this experiment doesn't work on all browsers like Kuler does."
Kuler doesn't, that's the problem. It requires the Flash plugin, which isn't available for all browsers (let's not even discuss performance, stability or security).