My camera now in full day light even in full overcast is shooting exceptionally well, the pictures are amazingly clear and sharp... I use auto focus and always shoot at 100 ISO...
In low light, there isn't a huge improvement, but if you use around 400 ISO or auto the camera does a half decent job in low light compared to before... The flash is overly bright in most situations though however...
I played with the camera somewhat in 2.1 but it never really did what I wanted it to do, but in 2.2 it is sorta practical...