Any clue when Meteor is going to finish their implementation of smartcollections? It seems kind of odd that you have it done for months and months but they still haven't managed it...
I really appreciate the work Arunoda has done on smart collections; my implementation and his package have both learned from each other. That said, there are a number of subtle race conditions involved in synchronizing queries between the oplog and the main database, and working out all the little details as carefully as possible has taken time!