Google Drive Is Going To Release Google Apps Domains

For the business which is using Google Drive a good news today announced by Google:

Google Drive comes to Scheduled Release Google Apps domains

If you work in a Scheduled Release Google Apps domain and have been itching to try Google Drive, you’re in luck! Starting today, we’ll begin rolling out Google Drive to Scheduled Release domains. When your domain has access, you can sign up at drive.google.com/start.
Note: This rollout will take place over the next few days. If you don’t have immediate access, try again at a later time.

Check here for official message.