Newtons

Original Newton Messagepad
Newton Messagepad 100
Newton Messagepad 110
Newton Messagepad 120
Newton Messagepad 130
Newton Messagepad 2000
Newton Messagepad 2100
eMate 300

Newton Clones

Sharp Expertpad
Motorola Marco
Digital Ocean Tarpon
Digital Ocean Seahorse

Accessories

Apple Multifunction Interconnect Adapter

Others

Newton Messageslate

Intelligent Newton Magazine