- All advantages are inherited from SNSAPI, i.e. scripting ability. e.g. User:Hupili.net uses a 10 line hook to aggregate his messages (status update and forward) to a single RSS. Glance the code 
- Messages are stored in a SQLite DB in canonical format. It's very easy to perform mining tasks with your data. e.g. what are the messages your tagged as "interesting"? what's the time distribution of your incoming messages? which channel gives you the most valuable information?
- The UI is very poor... I can just make it work but I'm not good at design. Looking forward to cooperating with a designer.
- The original techreport: