Proview Technology has said that Chinese customs authorities have told them a ban on the import and export of Appleís iPad would be difficult to enforce, according to Reuters. The Hong-Kong based company is currently locked in a dispute with Apple over its use of the iPad name, which Apple believes it legitimately purchased from the company and trademarked in China and nine other countries. Customs authorities in China have said that any attempt to ban the iPad from China would meet opposition because of its popularity.