Apple provided us a new way to reach a lot of users, and for people like me that have experience with web applications NimbleKit is absolutely perfect! The learning curve is very small because I can apply my knowledge on web apps to create professional apps on the iPhone.

This is important because I can make great ideas come live faster than if I had to learn my ways on Obj-C and even on this it help us, because it provides the ability to mix obj-c and javascript.

I was able to port one web app to the iphone in 2 days and enjoy the native functions like sqlite support, maps api that wasn't available to me before NimbleKit.

There a lot of applications out there relying on rss, templates, dashcode, these guys gave us a powerful tool to create applications with native elements without the pain to "emulate" them with css or some "magical" workarounds. Also performance is great. I have 3 apps on the app store approved and 3 more on the way. And $99 is not expensive, first because is one time fee only, also the support is great and that's whats make the difference, great tool with great support that you can rely on.