Late last week Opera released its lastest State of the Mobile Web report, showing just how much of a boost the browser has received from being on the iPhone:

• In April 2010, there were over 2.6 million unique users of Opera Mini on the iPhone.
• Most likely due to the interest generated by Opera Mini’s new availability on the iPhone, the United States jumped from #8 to #6 in the top 10 countries list.
• The United States is ranked #1 in terms of Opera Mini users on the iPhone, and the iPhone is the #1 handset used by Opera Mini users in the United States, well ahead of BlackBerry (which previously occupied the top spot).
• The United Kingdom is ranked #4 in terms of Opera Mini users on the iPhone, and the iPhone is the 5th most popular handset used by Opera Mini users in the United Kingdom.