Now we know its not easy to bring alternate browser engines to Windows Phone 7, but like the iPhone alternate browser shells using the IE Mobile engine are more than welcome, as we have already seen with a number of clients.
It now appears a Windows phone 7 client of Opera Link is in the offing. The client, by Opera intern and Windows phone 7 developer Martin Rauscher promises to provide access to data on Opera Link, including bookmarks, speed dial and notes.
It is not clear if its an official or unofficial client, but much of the source code can be found on Github here.
Now we only need a similar Weave client for Firefox (as they have done for the iPhone) and we would have moved as far as we can go without actually having an alternate rendering engine.
Thanks dropqube for the tip.