The biggest problem about the crash is it's random. Else fixing was not a problem.
My guess is the postlist model has too many properties and there's some memory problem while passing it to qml.
For now, use this build
http://dl.dropbox.com/u/30937627/for....1.7_armel.deb
It has the fastscroll disabled, so that whole postModel is not accessed always, hopefully crashing less.

Working very well for me. The earlier 017 vrsn crashed every second