The guys at Zumobi have managed to work some agreement with Microsoft where they will be distributing their browser with Windows Mobile devices.  Overall, I would say this is a darn good thing, as the Zumobi interface is very cool.  It breaks things up into tiles and allows you to quickly and easily move between sites. The best part is that Zumobi is free.  Just make sure you have a good data plan as it looks like there's a lot of data usage to get this working just right. You can download a copy directly from the Zumobi site. I have it installed on my device and so far, it's nice.  We'll see how it measures up to daily usage

The menus are also a little weird at time, as it's meant for numeric entry and I can do so much more with my BlackJack II.  I'm sure better keyboard support will come with time. As a side note, you should be aware that using Zumobi means that the sites you read are being filtered through the Zumobi servers allowing them to manipulate the pages for the best possible display for your device.