Why does it only work on fully unlocked ROMs (like DFT Freedom)? Isn’t developer/interop unlock enough to run it?
Developer unlock will let you install XAP. Interop unlock will let builtin interop library work. Full unlock will let Opera native exe run.
That means, nothing except Full unlock will help you run it.
Which ROMs should I use?
All ROMs that use DFT-like unlock method. I say “like” because there are some other methods, I can’t list them all. I can’t tell you “Yes, it will work on this rom” or opposite, just test it and leave a note if you want.
Is Opera Mobile port possible in future?
What’s countdown made for?
It will allow to remove Opera and its cache.
When I press “Stop”, there is a “Delete internal opera folders” button. Why is it here? I can delete this app like any other WP application…
The reason is that Opera launcher goes beyond the standard isolated store. For example, it creates \Program Files\Opera Mini folder. Also it adds some absent libraries to \Windows\.
If you delete Opera launcher “like any other WP application”, folders beyond the sandbox will still stay there. So, use “Delete internal Opera folders” button wisely.