The rumors are over. Google Apps are here and I'm very happy to be moving my consumer Google Docs & Spreadsheets over to this new service and sharing calendars with our employees and extended network. I experienced 99.9%+ uptime during the beta period, so I'm comfortable using Google Apps Pro for company-wide communication and collaboration.

The open API is just icing on the cake. Time to rethink my Google Docs for AppExchange app and take it to the next level.