我正在考慮從Android切換到Windows Phone8。我唯一關心的是我是否能夠使用我的Google Apps Free Edition帳戶（我不提供該服務）同步電子郵件，聯繫人，日曆和任務由Google刪除）。¿是否有可能需要商務版？
將Windows Phone與Google Apps Free Edition同步
The feature you describe would be covered by "Google Sync" (their name for Exchange ActiveSync), which remains available to set up new Windows Phones with, until 31 July 2013 - it will also be available to set up new devices with after that date if you are a Google Apps for Business, Education, and Government customer.
The GDR2 update which is currently being pushed to devices has CalDAV and CardDAV support for google accounts. You will then be able to sync your account as soon as you get that update.