Android 2.2 brings an extremely noticeable performance boost

Ars reviews Android 2.2 on the Nexus One

Google is rolling out Android 2.2, codenamed Froyo, to Nexus One handsets. The new version of the operating system brings an extremely noticeable performance boost, a handful of impressive new features, some minor user interface enhancements, and useful new APIs for developers. The additions in Froyo fill some of the gaps in the platform and augment its competitiveness relative to rivals.

Read review at arstechnica