UPDATE: The new iMacs are unveiled.
Apple has temporarily closed its international online stores. A product release is very likely on the re-opening.
The usual "We'll be back soon" post-it followed by a "We are busy updating the store for you and will be back shortly" appears in place of the store.

Among expectations are new iMacs and maybe new Mac minis as well, based on the latest Intel Penryn processors.
MacScoop has been told in early March that the renewal of these new lineups was just weeks away with the only constraint being inventory clearing (See the report [1]).
Stay tuned as MacScoop will keep you updated when the store is back up.