we have released Piwik 1.3rc with many fixes and the new feature, Custom Date Range.
UPDATE: 1.3-rc4 now available with all known bugs fixed… this will become 1.3 if no new bug are found!
Download the new release at: http://builds.piwik.org/piwik-1.3-rc4.zip
To update, follow instructions in: Update Piwik - Analytics Platform - Matomo
See the full list of tickets closed in: adding support for windows phone 7 version 7.5 by thirashima · Pull Request #1 · matomo-org/matomo · GitHub
Before upgrading, please backup your database (even though this should be fairly safe, demo.piwik.org is already running this version)
Please report here any bug you can find.