I was looking at Karl's new products (see below) and got sidetracked into looking at other new and recently introduced products on Tindie. Here are a few that I noticed:
Karl's 22c Z80 CPU Module + Clock
Karl's PCBs for a Basic Modular 8-bit Computer
Karl's Memory Module (512k RAM + 512k ROM)
This module includes memory management (paging) making it an alternative to Spencer's 512k module - but at less than half the price.
Tynemouth's Minstrel Issue 3 - Z80 Compatible computer kit
Single Board Relay Computer
Noisy and slow computer!
RetroShield Z80 for Arduino Mega
Karl has been busy - well done Karl. I think the 512k memory module should be popular.
Steve