Yes. Please feel free to register your domain at http://www.google.com/a/cpanel/domain .
After registering and getting information from Google's approval, please contact us so that we can help you the CNAME and MX or follow this Tutorial http://blog.afiahost.com/how-to-setup-google-apps-with-cpanel/ .
The standard refresh time for the MX record is within 1-6 hours after the change,
although in some MX changes we've tried to do the effect can be directly e-mail update so it can go directly to Google Apps.
In the span of 1-6 hours such, there is the possibility of e-mails will still point to your hosting server if it is found mail server hasnot refreshed DNS sender. Unable to do anything to speed up the refresh control because it is very dependent on the standard used by each refresh - each DNS resolver server.
