@qgil

Problem with Nokia and Trolltech is that we don't really know why Nokia bought TT.

There are several possible reasons:

1) Qt will be Next Big Thing in Nokias ecosystem and company wants total control over toolkit - this possibility was mentioned on margin of some of press releases; problem with OS is - for that Nokia doesn't need open-source - completely irrelevant.
2) Nokia wants to buy company which is going well financially to improve its own profits - this one is impossible because TT had financial problems as was revealed by digging around Oslo stock exchange (nothing big but...)
3) Dive into open source while investing next to nothing (AFAIK it was ca. 1.5% of yesteryear profits - comparing with my 'finances': several bags of peanuts).

Third cause was mentioned in letters quoted by you but this doesn't hold. The biggest engagement of Nokia into open-source so far were things connected with Internet Tables. Overwhelming majority of contributions linked earlier are related to tablets (OMAP support for X, D-BUS, etc.). But Internet Tablets are done in GTK! Also there were quick assertions that ITs will stay in GTK land.

So, why Nokia bought Trolltech and what is long term strategy for it in its portfolio?