Now, just finished the project Caruh, which is cooperative, preemptive, prioritized Multitasking on CPC / Plus computers. In future I intend to add several nice Tasks. For example an MP3 player or something to display the time.
What (which Tasks) would you like to see?
The Archive including Caruh, examples and a Manual (English) is right here:
http://futureos.cpc-live.com/files/Caruh.zip (http://futureos.cpc-live.com/files/Caruh.zip)