It's a beta. It's expected to have problems.

If you're not happy installing beta software, don't. If you are, accept the implicit contract that by making this software available for use prior to release (and potentially suffering "negative" press), it's your responsibility to raise good bugs in Bugzilla.

Installing it, not raising bugs and just moaning on forums makes it less likely for Nokia to announce plans of future releases of IT OS (rather than Maemo), release more beta software and many of the other things many of us are advocating they do to be more open.