This isn't a typical "how To" article, because currently this feature doesn't exist, but it could with just a little 20% time at Google.
Whilst you can download an OPML file to import into other feed readers, or to upload to the web in another location, you can't currently access it directly.
Whilst many tech sites are lauding the new blogroll for Google Reader users, it isn't really very useful, and is without doubt extremely ugly compared to many widgets that use OPML, such as SpringWidgets, or even a work-around previously available.
