Right now if you use Opera mini 7.6.4 you will notice that there is much more publicity. I think they have done it to encourage us to move to the latest version of opera mini. Here I give you the reasons that make me stick with the old version.(excuse my bad English)
1- It really save data: the 7.6 version has the best compression method.
2-its has the best tab switcher. Personally I don't like the full screen tab switcher
3- better Compatibility with many websites: many websites that render correctly in mini 7 doesn't work at all in the new opera mini. Many times you must disable compression.
4- Remain open: opera mini 7 save all the tabs in the memory so that you don't have to reload a Web page. You just open mini 7 and you continue just where you left.
5- copy/paste facilities : just hold on any box to copy/paste text , a must.
6- manage my search engines simply
7- simple menu button
Those are the reasons that make me stick with the old opera mini version. Because when I really want to browse the real Web I'm in another browser