I received an email yesterday informing me that the Wi-Fi Galaxy Tab 7.0 Plus had received an Ice Cream Sandwich update a couple of days ago. After doing a little searching on the web, it appears to be true. The update is available OTA or via Kies. It will upgrade your Galaxy Tab 7.0 Plus Wi-Fi only model to Android 4.0.4, which is miles ahead of the Honeycomb software previously installed.
Thanks for contacting me Kurt.