Yes for now we can only print with Postcript compatible printers. The one i used i got for 150€ on ebay (costs normally 800 ; ) )
But Samsung offers small ones (i think the smallest on earth) starting at 150€ new.
The printer demo button i added to braodway does the the following:
it checks if in RAM: exists a outputfile (Cinnamon can export to PS/PDF) then it sends this via copytopar (Terminillis added support for USB, ethernet works too) to the printer.
If there is no Output-file in RAM: it will print a TEST-file - shown in the video.
http://www.aros-broadway.de/printdemo.tiffWhat we have
Gostscript
copytopar (with USB(new)/Ethernet support
What is comming:
a2ps and some secrets to make printing of nearly all files possible.