Production of consumer hand-held devices by Psion has now ceased; the company, after corporate changes, now concentrates on hardware and software for industrial and commercial data-collection applications.

[2] Whilst the Psion was highly praised as a device that pioneered portable computing, host Jon Bentley ultimately gave the accolade to the BlackBerry.

[3] Software Datapaks titled Science, Maths and Finance contained the POPL programming language editor, interpreter and runtime system and extended the built-in calculator by adding named functions.

The Psion Forth Development System for the Organiser I was a powerful set of IBM PC-based cross-development tools for producing Forth application software, including a Forth compiler.

[citation needed] The Hitachi 6301 processor is an enhanced development based on the Motorola 6801 implemented in complementary metal–oxide–semiconductor (CMOS), with several extra instructions, various hardware system on a chip (SoC) facilities on-chip, power management and support for a sleep state.

Having fully static RAM and a processor which clock could be frozen without losing state meant very long battery life, measured in weeks or even months.

More advanced users could edit the system machine-code routines, either by direct machine code or by calls from OPL, could manipulate the built-in address database, and create their own.

The Organiser II was widely used for commercial applications in companies such as Marks & Spencer, where it was used on the shop floor, with their branding instead of Psion's and with only limited keys visible to the end user.

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.

The original Org2.com[6] 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.

When he 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 terminal illness and the site became inaccessible.

With this in mind the author of ORG-link has further developed and released ORG-Link_V2 an Organiser II Comms Link Server that works in all Windows versions 32 and 64 bit.

In the winter of 2013, Jaap created his web site [8] with the aim "to be an archive of Psion Organiser II information and software that might otherwise be abandoned and lost".

As to hardware architecture and operating system, these had no links to the earlier Organiser range, other than the end-user programming language, which shared a great deal of structure with OPL.

The consumer-grade high-level programming language still shares features with OPL, but the developer toolkits were from then on focused on programmers familiar with C and only the Symbian operating system remains.