"I don't understand this obsession with offline support for collaborative realtime apps." You're already offline. Conflicts can always happen. Your 3G disconne

"I don't understand this obsession with offline support for collaborative realtime apps." You're already offline. Conflicts can always happen. Your 3G disconnects frequently. If you want a robust app, and especially if your target audience is often on the road, why wouldn't you be "obsessed" with offline sync for collaboration? And if you really need user-guided conflict resolution, you can just make that.