Rojo Article on Technology Review

Technology Review has written up a short article on Rojo. They make some good points in the article, such as whether users are willing to build up contact lists in the context of RSS readers in order to get the filtering ability that social networking gives you. There are all sorts of interesting features that occur when you have social networking context, such as search with Eurekster or RSS reading with Rojo. The issue is that we all have to reinvent the wheel and get users to renter their social networking information, which might be too much for many users. I'm not sure what the answer is, though FOAF is always an interesting option. Anyone have any ideas on how to solve this issue?