Thanks to Matt and team for the piwik 1.2 released . they had Released some cool features in this 1.2 version
some important features in this release
1) segmentation for API.
2) first party cookie
3) Archive became faster now 🙂
4) Event tracking
5) SetcustomURL function
These are some of the feature . Here is the changelog for this release Piwik 1.2 Changelog