Opera Mini is different, that thing is Java based and is.......
This Opera 8.5 is a full WM5 native app, really good.
URL to the forum :
http://forum.xda-developers.com/viewtopic.php?t=35595
URL to get the Opera 8.5 cab file :
http://ftp.opera.com/pub/.custom/partners/sharp/
URL to get the modified dll :
ftp://xda:xda@ftp.xda-developers.com...fied_opera.zip