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In 1982 he posted a message titled "Electronic Mail for People on the Move" in an arpanet mailing list called Telecom Digest. In the early 1990s Goodfellow attempted to commercialize this concept in a product called RadioMail. In 1992, Radiomail entered into a partnership with Research in Motion, RAM Mobile Data, and Ericsson. Goodfellow left the company in 1996.
Goodfellow, a contributor to the Jargon File and participant in the early days of the Silicon Valley computer culture, did not believe in patenting his idea. He told The New York Times, "You don't patent the obvious...The way you compete is to build something that is faster, better, cheaper. You don't lock your ideas up in a patent and rest on your laurels." 
The inventor, Thomas J. Campana Jr., was granted several patents covering his inventions related to the practical implementation of wireless e-mail. In 2006, after a protracted legal battle, (See NTP Inc.) Research in Motion had to pay $US 615 million to obtain rights to these patents.
Goodfellow started to write poetry in 1983. His three poetry collections “No Collars No Cuffs, Bow Tie & Tails and No Ticket No Start” (Triggers, Turning experiences into Poetry) are used in schools all over Australia. He conducts performances and writing workshops in schools, colleges and universities, correctional institutions, on building sites and in corporate boardrooms.
In 2006 Goodfellow began researching the cause, nature and origin of what he regards as the critical state of disharmony on the planet.
- 1982 message digest
- John Markoff (April 16, 2006). "In Silicon Valley, a Man Without a Patent". The New York Times. p. 1, section 3.
- Discussion of the arpanet issue on the blog Techdirt
- Wallstreet Journal Law Blog  "Goodfellow couldn’t come up with much documentation on his initial invention"
- Geoff Goodfellows' blog
- Geoff Goodfellows' website
- John Markoff (January 17, 1999). "Saying Goodbye, and Good Riddance to Silicon Valley". The New York Times. p. 1, section 3.