Hi. While Symbian and Opera widgets should be compatible, there can be some problems with input (some widgets presume keypad/mouse etc.) and/or other features. Could you name the widgets you were trying? I could check out if there is something I can do about it.

Btw, I discovered a weird, often used mechanism with Opera widgets. Opera actually instructs developers to use window.resizeTo() function for widgets to go to fullscreen mode and some widgets seem to require this mode before loading up due to copy paste from that instruction... Also, Opera specs seem to say for Opera widgets "fullscreen" should actually be same as W3C maximized view mode. So, I'm changing the Opera support in next version so that for Opera, widgets are always run on "fullscreen" widget mode, which seems to make a few more widgets runnable (http://widgets.opera.com/widget/17292/ is a good example of such a widget).

Also, I'm considering adding a toolbar with d-pad buttons (arrows and a selection softkey) for Symbian widgets in a later version. That should make many Symbian WRT games playable.