VolnaTech has released NimbleKit SDK (http://nimblekit.com), an update to their software development kit thath adds full iPad support. NimbleKit allows to develop iPhone and iPad applications using just HTML and Javascript.
According to the folks at VolnaTech, there’s no need to spend time learning how to use complicated tools. Just start development from a template and immediately HTML file available for modification or to launch your app in simulator.
The NimbleKit SDK requires Mac OS X 10.5.5 or higher and iPhone SDK 3.0 or higher. It’s available for US$99. A trial version is full featured but apps created unregistered can run only on iPhone or iPad simulator (part of iPhone SDK).