Notably, includes pinch and zoom for iphone like browsing in Google base applications.
Android hardware has always been capable of multitouch. Nonetheless, the events weren't available in software until 2.0 or later. Even, then pinch and zoom was not immediately available.
Chatter on developer boards has suggested that:
1. Google didn't include pinch-to-zoom because Apple might sue them over a patent.
a) But the Android SDK does let you implement multitouch applications (since 2.0), so that does mean that they'd rather let small developers get sued?
2. Google didn't include pinch=to-zoom because one of their executives doesn't like it.
3. Google didn't include pinch to zoom because they don't want to be just like IPhone.
If any of that was true, Google has gotten over it.
Other applications are likely to use the multitouch. Since there is no simple interface for "pinch-to-zoom", implementations are unlikely to be consistent, but at the same time, there is a wider range of things beyond pinch and zoom that can be done.