Using Jo and PhoneGap, you can create native iPhone/Android/Symbian applications which are both lightweight and responsive as well as pretty. Jo currently supports the follow platforms – webOS, iOS, Android, Symbian, Safari and Chrome.
Sencha Animator comes as a desktop application used to create rich HTML5 animation. It’s currently in its infancy but could have real potential. There is one drawback at this point-in-time however; it requires a Webkit browser to work. This means it will work in Google Chrome, Apple Safari, Iphone, Ipad, Blackberry torch, Google Android and other Webkit based browsers. But it will not fully work in IE, Opera or Firefox. At least not until the CSS3 is fully supported (IE 9 claims support).
Update. Sadly the website mentioned in the post is no longer available. Here is another very interesting Ajax resource well worth a read. This article give some nice examples of things you can do with Ajax, some tutorials and also explains the history of Ajax. The article is several months old and you may already [...]
Just read an interesting article over at sitepoint by James Edwards. Titled AJAX and Screenreaders: When Can it Work? Quote: We’ve all heard a great deal of buzz about AJAX in the last few months, and with this talk has come a legion of articles, tips, presentations and practical APIs designed to explore the possibilities [...]