yeah that would be very cool and usefull, I usually use dcemu for checking serial output, even though its about 1000% slower ,when something wont work in Chankast, I use it to debug where its crashing so i can fix it so it works in CHankast.
I played around with those game cheat search tools to see if i could find a memory location within Chankast to maybe write a hook that could display the output, only problem was it was found in multiple locations and different depending on my program i was testing. Maybe this is a valid route if they dont release a version with a built in debugger?
I also was looking into a writing a debug handler that would redirect serial output to a vmu file since those can be viewed in a hex editor , text editor etc. But with the changes to the debug handling in Kos 1.3 I wasnt able to get it to work.