Trolltech is terribly small compared to Nokia, which is one of the largest companies in the
world, in fact. It has more annual revenue than Microsoft.
The acquisition may have nothing to do with Trolltech's revenue stream. Perhaps Nokia believes
that incorporating parts of Qt in its System 40 and S60 will grow those revenue streams by 1%;
that would make this a worthy investment, even if all Trolltech revenue vanishes overnight. If
it raises them by 10%, well, pacts have been made with the devil for far less. All of
Trolltech's current revenue is completely dwarfed by these business interests.
Now, this is just speculation, time will tell. But based on the press releases, Nokia does in
fact intend to continue to push System 40 and S60, with Qt included in some manner (sadly, no
move to Linux...). As this is Nokia's *core* business, I presume that this is the reason for
the acquisition.
The thing to remember is that Trolltech needed money to survive somehow. They built a nice
business model around Qt, and KDE was a big part of that. Nokia has completely different
interests; it can run its Qt division with no revenue whatsoever if it helps out other
departments, like, again, its core business.