I was pleasently surprised to find that Opera 9.5 beta2 for Windows Mobile has a lot of the features of the full browser. In fact it can be difficult at times to persuade websites to provide their mobile friendly version.
There's a probem with the layout in Bloglines, which is ignored by PocketIE, but Opera shows up. There's an unclosed (center) tag which leaves all of the content centred.
m.beta.bloglines.com/feedtree
So a little work with Opera, it's big brother allows site specific CSS overrides. So created a file called
override.ini in /Application Date/Opera 9.5 Beta/
Opera Preferences version 2.1 ; Do not edit this file while Opera is running ; This file is stored in UTF-8 encoding
[Overrides] bloglines.com
[bloglines.com] User Prefs|Local CSS File=\Application Data\Opera 9.5 Beta\mystyles\bloglines.css
Created a subfolder mystyles and bloglines.css
@charset "utf-8"; /* Stylesheet for bogines.com */ center { text-align: right; !important
} /* the yellow background was a test to see if this realy works */ body { background: yellow; }
Relaunch Opera, and we have bloglines with our custom styles. More examples of style overrides at http://userstyles.org
I think the syntax of the override.ini file allows many of Opera's settings to be customised on a site by site basis. Not experimented with this yet, but I would not be surprised if you could turn off javascript, or stop downloading images for specific sites using this override file too.

