Well:the core (loading, history, stats, fitting) should work hildon widgets - some might be Fremantle only Clutter (animating the page) - IMO not available in Maemo 4 So theoretically replacing Clutter with a GTK drawable + pixmap and using Maemo 4 only widgets might work. But I have no Maemo 4 device + I already have my plate quite full. If somebody want's to work on Maemo 4 support, the code is all there and I can give you pointers what exactly might need to be replaced.