Some sort of hacking sandbox is needed for the iPad. Something like Hypercard would be dandy. Then again, aren't web apps already available? Safari is a very good Javascript platform. Maybe an iPad version of iWeb with a "local server" and some sort of app publishing/sharing via Mobile Me? Actually the beauty of this approach, is that a 3rd party could come out with this quickly, using App Engine or Amazon as a back…
Personally I'm getting tired of hearing about how Javascript-enabled web apps are good enough. No, they aren't. Yeah, it's exciting that Quake2 runs in Chrome/Safari, it really is. But in 95/96 I was participating in demo-scenes, with graphics that weren't accelerated by the GPU, in 386 real-mode, and it was a lot easier and a lot more exciting (demos that got distributed by a local PC magazine, having as target more…
To play on a level field with native apps? No. Wrong discussion! What about for the same sort of tinkerer/hobbyist who wrote Hypercard stacks? Seems to me, with a little hosting and a few tools, Javascript would be dandy!
(And as for commercial apps on Hypercard -- hey, you're free to try. But I'm not talking about targeting those folks.)