A short digression: I own a Sony Ericsson P1i, once the company's flagship smartphone, that's based on a now abandonded strain of Symbian known as UIQ 3. And while I know that things change fast in the mobile industry, I still use the device, and it's not very pleasant to see that no one cares about it anymore - the handful of apps that are available for the device will remain just that, a handful. If you plan to use your smartphone for over a year or two, you would do well to choose a platform that's not likely to disappear within that time frame. Luckily, Opera also develops Opera Mini, which works on most Java-enabled smartphones, including my P1i.
Back to Opera 10 Mobile Beta! What we said about the Nokia/Symbian version, stands for the Windows Mobile version. The new version brings a better, finger-friendly keyboard, tabbed browsing, a redesigned speed dial, faster operation, and of course, support for Opera's Turbo mode which speeds up browsing by compressing web pages on Opera’s (Opera) servers.