with only limited keys visible to the end user. It was also used in the world's first large-scale application of mobile technology in government, where over 3,000 were used for benefit calculations by the Employment Services department of the UK government. It proved popular with surveyors who interfaced it with electronic theodolites, which proved to be the precursor to the now popular total station. The Organiser II also had an external device slot, into which various plug-in modules could be fitted, including a device that provided an RS-232 port (named CommsLink), thus enabling it to communicate with other devices or computers. This top slot also supported various other hardware additions, such as telephone dialers, a speech synthesiser, barcode reader, and a dedicated thermal printer. This latter was used by several banks as a counter-top exchange-rate calculator for some years. As it was easy to get hardware specifications, many bespoke devices were developed by small companies such as analog-to-digital converters (A/D) and even an interface to the full range of Mitutoyo measuring equipment, allowing it to be used in quality control for various car manufacturers. Later models in the Organiser II range offered other hardware improvements, with 4-line displays, and also models were introduced with 32, 64 and 96 KB RAM. Post production enthusiasts and developments In the autumn of 1996, when Psion PLC had moved their focus away from the Organiser II onto the newer clamshell series devices (below) and had almost ceased support for the Organiser II, Dave Woolnough created the Psion Organiser II Homepage to fill the gap, stating "Considering that more than 500,000 series II Organisers were produced, there must be many people still using this wonderful machine". The original Org2.com no longer exists. In the summer of 1997, Jaap Scherphuis joined the site as software specialist and soon became fully responsible for maintaining the web pages on a day-to-day basis. Dave wrote about Scherphuis "A Remarkable Psion Programmer". The Psion 2 archive had a large proportion of programmes written by Scherphuis, many written in machine code. In the spring of 2002 Boris Cornet took over as site maintainer/editor. Later that year Cornet replaced the chat (bulletin board) with the now defunct Psion Organiser II Forum. When Cornet died in 2012, the administrative duties for the forum were taken over by a power user mikesan who ran it until the spring of 2020 when he developed a