From Sybase iAnywhere:
XTNDConnect PC is a software application that makes data synchronization easy, allowing you to synchronize your contacts, calendar, tasks, email, and notes between your mobile devices and popular PC applications. Due to customer demand, new support for Windows Vista Contacts, Calendar, and Tasks and Google Calendar has recently been added. XTNDConnect PC greatly improves your effectiveness and productivity without requiring the involvement of IT departments. Built on the market-proven and award-winning XTNDConnect PC technology which boasts more than 9 years of market experience and 50 million distributed copies, XTNDConnect PC Data Synchronization is fast, flexible, and easy to use. The product is available for customers in 17 languages.
What's new in this version:
Version 7.1 supports Windows Vista Contacts, Calendar and Tasks Support for Google Calendar Expanded device support, including Windows Mobile 6.1 devices Significant performance improvements (faster, more flexible and easier to use).