on the client:

• - LAN P2P sync optimizations (i.e. dropboxes on the same network will exchange blocks locally instead of downloading from the server)Experimental Build

• - selective sync (i.e. the ability to exclude paths from syncing to specific computers)

• - significant performance improvements when moving around/manipulating large numbers of files (needed before we unveil the ability to sync any folder) Experimental Build

on the mobile/API front:

• - alpha of the dropbox API