That's the good part.
However, in the process of redirecting my blog to the new web address, I lost several hundred subscribers to my posts/feeds. And I suppose there's no way of reaching any of those people other than hoping that they visit my blog on their own and read this post!
Don't do as I do. Contact someone who knows how so many sites are intertwined and the effects of one little change, but before you make the change! I use Darin McClure of Ready To Go Information Technologies - RTGit - he knows his web marketing stuff.