We’ve added Asia Pacific (Tokyo) and South American (Sao Paulo) as options for the setting “Where are you closest to? (For quicker response times we’ll connect you to servers closest to your location)”.
This option is set when your account is first established. We’ve switched many of our clients who (through their Google Apps registration) appear to be closer to these locations than North American or Europe (Ireland). If you’d like us to manually verify or change this setting for you just reach out to our support team.