A portal namespace was recently created, with the prefix Portal: This namespace is mainly intended for many of the WikiPortals. The idea began with the creation of Portal:Cricket, which was originally in the mainspace under the same name. It was nominated for deletion in April, with the result being to keep, until a portal namespace was created. The namespace was not officially created until earlier this week, when a developer finally made the necessary changes.
Debate on whether a namespace for Portal was necessary was largely in favor of adding the namespace. However, a proposal to make the Main Page a portal was rejected soundly as 'unnecessary' and 'disruptive'.
Editor-oriented WikiPortals will remain at Wikipedia:Wikiportal. Existing reader-oriented WikiPortals have been moved to the Portal namespace already.