Based on what the new @girlgeeks holder (Mia Chapman) has said [1], it looks like she talked to Twitter only as a first step, and never expected them to just hand it over with no notice to the previous name holder (Morna Simpson). Also sounds as if Mia's trying to resolve things with Morna mano-a-mano (so to speak) now.

[1] http://news.ycombinator.com/item?id=2313593