Opera Mini and Mobile are a pig as they mask the true user-agent of the mobile, which in turn prevents content providers from displaying content that is correct for your mobile phone. Content providers then dumb down the site and show only the basic content despite you having an all-singing mobile. Country detection is also screwed as everyone appears to be in Sweden (Opera's gateway).
Mobile operators also mess with the content when it passes through their gateways; strip out adverts and replace them with their own, lower the quality of images to aid faster download, change tags in the code and block sites if they think you're under 18 and the site is adult (check for adult keyword combinations).
Could use a transcoder like
www.google.com/m but Google will push you out if they can see your user-agent isn't a mobile device.
Could look for other transcoders and see how they work?
