Here almost the same problem.
Reinstalling (after installing 1.3) dropbox does not work. Conflict with python2.5-qt4-sql(4.7.4_maemo0).
If I had known that I would have waited with 1.3 since this is the best app for me!
Update: Just installed newest version (1.6) with fapman.
No problem to install, but starting the app gives nothing...
Fun to see so many new people coming up on the thread once the app is not working I guess I have more users than I thought.
I would like to fix this but I cannot dist-upgrade my dev environment as im getting "504 Gateway Time-out" from repository.maemo.org so I cant get PR 1.3 setup to my scratchbox.
Update for the crash: It is segfaulting on my QApp subclass on QApplication.__init__(self, sys.argv) line. This same thing has happened to other people too so its just not me. Attila who is the pyqt maintainer did not respond to that which is a shame.
I'm not sure if the subclass thing is what is crashing, I will try to instantiate the app as a member variable as the subclassing is really not needed, its just nice design imo. But from the other guy you can see he is not subclassing so I dont think its that anyways. When I make a app = QApplication(sys.argv) on my device just in python console It's fine, so really hard to say before I get to look into it a bit more.
I will try to upgrade my dev env tomorrow if the maemo repo servers would be up to the task and push a fix once resolved. Hang in there, I'll try to resolve this asap