Amstrad E-m@iler Telephone
Think back to 2000: would you pay 12p to send an email?
When it was released, Amstrad's E-m@iler Telephone cost £79.99 from Dixons and allowed you to send email without using a PC. This was an interesting concept, but it was a pain in the asterisk to use and it looked revolting. Most people had computers and the Net was becoming ever more ubiquitous. What was the point of such a comparatively costly system?
Speaking with our sister site ZDNet UK at the time of the E-m@iler's release, an anonymous analyst said, "This is 2000. I think he [Amstrad director Sir Alan Sugar] may have missed the boat." Quite.
In about 1994 this could've been hugely successful, as the Web was tiny and computers with modems were expensive. But for 2000? Dead on arrival.