Via jevdemonon how CommBank gives Google Appsathumbs down. This is Gartner’s take:
However, Gartner warned IT managers that Google Apps was “not ready” for enterprise-wide deployments just yet — it lacked key features such as offline availability of stored information. Also, the search giant’s privacy policies, long-term road map and ability to comply with external messaging-related regulations had to be scrutinised.
Lacking offline capabilities is the biggie imo.