We are in discussions with the GTK+ and Hildon maintainers to see how to help addressing this community support.

Yes, Nokia has invested a lot of time (and money) pushing GTK+ and Hildon to provide the amazing UI of Maemo 5. The fact of having this corporate time and money invested in another toolkit might indeed cause some trouble to GTK+. Then again, if by having one stakeholder less GTK+ in Maemo is left "in the dust" then imho it means that either GTK+, Maemo or both have deeper problems.

I'm frankly optimistic, though.