Opera Mini is a great browser. I have been using it near enough 2 years on a number of different handsets. It is fast and effcient and on many occasions works far better (not to mention quicker) than internal browsers. Sure full browsers have more features but I have used a multitude of mobile web surfing software and it is not always fun. My PDA has Internet Explorer (functional but somewhat mutilated), Opera mobile 8.65 whichis beautiful, but sluggish in loading pages (not slow, but seems to receive data in a very staggered fasion). Also you have to pay for Opera Mobile. Opera Mini has similar navigation to Opera Mobile (although you cannot open pages in new tabs), and it has easy to use features. It is faster than Internet Explorer, so if you have it, you are left with a free browser that is very usable for most applications. It also sends compressed data to your handset, and the same web pages with loads of images/text are more memory intensive on full browsers. On PDAs the best browser by far is Minimo by Mozilla, but you need to have some horsepower behind your device, and although it works OK on my T-Mobile MDA Vario 2, it still runs far better on devices with higher sytem capacity.
In such a climate, it is best to go for something fast and usable, and Opera Mini does it everytime. I have also used Opera Mini on Nokia N70 and 6230i, as well as my brothers N95, and it works great. Also, for the non-technical, Opera browser is just simple straightforward browsing.
I found the N95 broswer to quickly fill its cache, and close down. This was unacceptable. Also, as the screen cannot be scaled down or made to fit one column, it is quite useless as you keep scrolling everywhere. A mobile browser, at the very least needs to be able to reformat pages (optionally, as some prefer the original formatting). I find this to be a nuisance, and personally I have no intention to use the cumbersome native browser on that device.
However, horses for courses. I have heard some people whinge about Opera Mini as well, nut perhaps they forget two things.
a) it is free (and you don’t have to use it), and
b) Some phones do not have built in browsers and are not capable of using full java based browsers, and in such cases Opera Mini is a brilliant solution, as it allows you to use your WAP connection and surf real web pages without generating a massive bill.

Browsers like this are designed for a different purpose than what some may be whinging about. Opera Mini is is not supposed to compete with more powerful mobile browsers (as the name suggests it is a ‘mini’ browser), but ironically it performs better than most full browsers, and can give them a run for their money. You can even download things, although some people’s older handsets may take some time. Normally when you download files, the browser closes when it starts to download the file, as it needs to access the connection, and you’d have to restart it after the download completes (just go to the history option and select the last page you were looking at to make this a little less annoting).
Go to Wank.com and download a free clip to test the download feature, and you’ll know what I mean (not that I watch porn, this example is for illustrative purposes only).
Also, if you download video clips remeber to have software installed that will let you play it. Most phones with video playback can play 3gp, so download erightsoft’s super, and convert your video clips to 3gp, and enjoy!!!

Check it young ones!!

Sorry!!