Yeah, tonecloud searching really needs improvement.
An advanced search with more filters:
Search by 'user'
Search by genre/tags
Search by Classification for Bias Amp (i.e. Crunch, Insane, etc)
For duplicates, I know I have uploaded duplicates of others tones to facilitate transfer from my desktop to iOS. Private uploads will help and any other 'personal' library management features (ie. send bank to iPad).
It would be really cool if the system told you on upload if your preset was a duplicate of a system already in the TC.