The same thing happened in Israel with the iPhone launch; iPhones just became available there this past December. But as I understand it, the iPad hasn't been passed through the European certification process yet and their rules on WiFi devices are slightly different from FCC rules (and Israel appears to conform to the European rules). So until it's officially passed, they're banning it from import.
It isn't that
unreasonable, they're just being a bit heavy handed. In any case, when the iPad launches internationally next month (currently it's only for sale in the US) the issue will most likely be cleared up.