Sadly, there are no decent alternatives. I tried
feedly:
- doesn't work together well with vimperator, so that's already a show stopper.
newsblur
- in the free version can only read 20 or so feeds
- much too slow
netvibes
- is just so much too much than what I need.
Features I need:
- android app, that is light and has some caching, so that it works in the subway (I use reader mostly during my commute
- web page or browser plugin that plays ball with FF/vimperator