Thomas Lövskog is developing cartridges for the Commodore VIC-20. The GCart Junior is a RAM expansion for the VIC-20. The features are: RAM expansion for Block 1, 2, 3 & 5 and RAM 1, 2 & 3. Memory enable, disable and write protect. RAM at IO#2 and IO#3. 16 MB Flash with super fast loading and a 3D printed casing.
Website: http://lovskog.net/projects/index.php/2015/06/05/a-quick-tour-of-the-gcart-jr/
URL has changed to:
http://wordpress.lovskog.eu/projects/2015/06/05/a-quick-tour-of-the-gcart-jr/