We will have a few short downtimes during the next few days, starting in a few hours.
They'll only last a few minutes (or so they told me) as the server software gets updated through the host provider to keep the system up-to-date and secure. I'm running an on-the-fly backup right now, so no worries, nothing will be lost

This is the mail I got:
Internal maintenance is due between 06/07/2010 until 08/07/2010 from 6-9am (GMT +1).
On one of the days mentioned above, your product will not be available for approx. 15 minutes within the mentioned time frame.
We are anxious to complete the maintenance works as fast as possible.
Thank you for your understanding.