Dunno if the idea already arose before (to lazy to look) but it could be a good idea to offer users the possibility to synchronize pies with indexes to reproduce them (mainstream ones, msci, etc…).
The pies would update their portfolio automatically everyday to match their underlying index and that for a small fee (new stream of revenues for T212).
For example you could have the ability to synchronize an empty pie with the NASDAQ-100 index for a small fee rather then buy an iShares ETF that would charge you 0.30% on and on and on…