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Commercially unavailable. Even though five working prototypes were made and demo'd, including an appearance on kids tv programme Saturday Superstore there are basically no details about the device available- indeed there are no photos of any of the prototypes on the Internet! — Preceding unsigned comment added by 2.221.217.177 (talk) 14:36, 12 February 2012 (UTC)[reply]
The US Patent lists a co-inventor of the "Portable Data Processing and Storage System" named James S. Campbell of London. The Kramer article does not mention him. What were Campbell and Kramer's respective roles? Also, the article says Kramer's employer held some influence over non-renewal of the patent, but the US Patent indicates no assignment to a company. Was Campbell a supervisor, or investor? --Blainster (talk) 02:16, 21 September 2009 (UTC)[reply]
The article makes a legal claim--that the subject of the article had prior art on an invention--that is not adequately supported by the tabloid newspaper cited in the references. If the claim is true, there should be a better source. If the claim is false, it does not belong on Wikipedia in an article about a living person, which implicitly brings up legal claims against other living persons. -- WeijiBaikeBianji (talk, how I edit) 15:35, 21 October 2012 (UTC)[reply]
There seems to be plenty of book sources (including a New Scientist article) and scholar results confirming the basic facts. I am going to remove the banner dispute template, if there are specific sentences still in dispute these should be tagged individually. SpinningSpark11:09, 1 July 2013 (UTC)[reply]
