First, thank you to the following persons:
- Cyrille de Brébisson (opening HP 20b as hardware platform)
- Pauli Dale (developing WP 34s and WP 43s)
- Walter Bonin (developing WP34s and WP 43s)
- Marcus von Cube (bringing it to HP 20b hardware)
- Pascal Méheut (porting WP34s to iOS)
- Jaco Mostert (initiating C43, C47 project)
- Michael Steinmann (running SwissMicros)
- Eric Rechlin (recreating the HP 15C CE manual)