I have the Opera mini on TMO w/ BB addon the issue seems to be a connection lag for the Opera. The BB browser starts loading pages instantly with the status bar a the bottom moving whenever I enter or select a link. The Opera browser usually stalls and says "Connecting" with no blue progress bar for 20-30 seconds and then finally loads. It does this even in areas with 4 or 5 bars. Sometimes I even get a connection error screen in 1 - 2 bar areas. The BB browser even loads in 1 bar areas.
I've tried the network setup. It didn't speed things along.