As individual developers, there is no way that we can hope to approach the exhaustive testing environments of a commercial software organisation. That's why we have community QA (extras-testing). We don't have that for Meego-Harmattan atm, but those of us with N950s can of course test each other's work using our own environments and report bugs. There are also some non-developers that have N950s, and I would hope that they will get involved in testing and reporting bugs, in addition to providing us with those lovely unboxing videos for a product that nobody can buy.