Only console based apps are possible to run yet i believe? I found this site http://java-apps.org that has a collection of java apps, some of them looks quite nice!
i tried jamiga extremely briefly when i installed it, but i was greeted by a crash. this was my first install of jamiga, and it was the latest version (two weeks ago).
i'll check it out again and try to give you a bugreport.
i managed to get dopus5 to crash. i accidentally draged an info file from inside an archive into the icon info window of another file. i was gonna replace the icon, but well i did something stupid but it did crash, i didn't expect that. ;)
my pegasos2 haven't got a monitor connected atm as i am busy with another project, but i found two nice new qt apps if anyone wants to have a go at them: