RE: Opera Mobile Browser for Nokia phones.

I'm looking for some information related to the Opera Mobile Browser. The current version is v6.10, prior to that was v6.0. Were there any previous versions prior to these two?

If so, which Opera Mobile Browser versions were these, and which technologies do they support?

Does anyone have any Opera Mobile Browser statistics, as in which version currently dominates the market, and how many of the previous version is still being used by the public?

Thanks in advance,