Recent developers in WebKit on which Safari is based, ended up in Safari browser for iPhone 2.0 as well as in newly released Safari 3.1.
Apple has implemented HTML 5, CSS 3 and SVG into it. HTML 5 provides a standard for embedded SQL statements into a script code. SVG (scalable vector graphics) brings motion into places where only static bitmap graphics worked before. SQL (through SQLite) and SVG are linked into Safari but not by plug-ins. CSS 3 sets up implicit and explicit animation, and manages both using renderer.
The advancements in Safari on iPhone 2.0 are great. In fact, Mac users will want it in their desktops! At least viewing for the developers