Well, I see broken Input Method in N900. You can't switch layout in desktop. Or in Contacts. This is bug introduced in Pr1.2 and registered in bugzilla. No Nokia respond on this.
Main use case is broken, and this clearly shows the following: Nokia don't use QA for N900 software.
I am the software developer, I know how test plans are made and how test cases are passed.
Ability to switch layout -- MAIN use case. Conculsion -- Nokia don't care about N900 users.
I bet there are only 2-3 contract developers and not QA working on PR1.3 now.