There is no way to sync yet, but we are working very hard making that happen.
If you are an advance user, I’ll drop one keyword that may make your day better: symlink the Opera Next preference directory to the Opera Developer directory. They will then share settings and data. This is unsupported, but it will work from a technical perspective. (I’ll not help you on the specifics here because you need medium skills to not break such a setup.)
I think there should be option box in Operas options. It's really frustrating to try to create script for command line argument. Really there should be a toggle in Options menu to allow this. Firefox has it already (Always open in private mode).
jugimaster, are you saying you don't want Google to know about your internet activity but you are OK to share it with anyone else who wants to track you?? Because that's what your post sounds like to me.
Btw, I wasn't telling you 'any of that' my post was addressed to shiranaihito in response to his comments.
Apple offer "Product Build" so it can be used with either the "package manager" in OS X or with the App Store.
It just seems like it would be easier to just offer a pkg format from Opera that could be used. Even Adobe does this for Flash; albeit not from the normal download section. Most other software, the .pkg is in the .dmg file so all you have to do is copy it out of there. Opera provides a .dmg but within it is just Opera.app that goes in the "Applications" folder.
pbw, you can now find the Mailto button extension in the extension catalog. It will add a context-menu entry when you right-click on a website and a toolbar button. The toolbar button can be hidden from the extension manager if you do not want it.
That's simple: you can't install extensions in that version of Opera because the Extension framework was introduced in Opera 11. If you're using PPC unfortunately there's no way you can use a recent version of opera, but you can block ads right-clicking on them and then selecting the right entry in the context menu.