This is indeed getting better & better :-) Preloading sounds great!

My #1 wish: caching of uPnP-Lists. I have over 40 GB of music, 10'000 files in 700 folders. Browsing through that collection works quite good now (Thanks for the quicksearch using the keyboard!!!), but when returning to an upper level, the "directory" seems to get reloaded every time. IMHO, it would be much better if any itemlists already loaded once during a session would kept in a cache for quicker reload. An additional sync-icon would allow manual reload if really needed (a music library probably only changes rarely, and probably 99% never while using MediaBox).