Here's the thing, Maemo.org has always been a resource for developers and I would bet that it was created and would grow as basically what it is -- a resource for developers. It has been so much a developer site that Nokia decided to create the Tableteer site which aimed to cater to end-users.
The itTSS really aims to complement Maemo.org and enhance Tableteer. itT's strength and focus is the end-user community. The itTSS' strength is to help the whole IT community -- both the developers and end-users.
Regarding "fragmentation", at times you have to denormalize. This is one time.