Venomrush,

thanks for your input! I hadn't realised that it actually does adjust the brightness in bright sunlight!! (I had only checked indoors...)
As for the zooming function...You must have very good eyesight!! I find it very hard, if not impossible to read certain fonts sizes. For example I struggle to read the brief desciptions under installable applications. There was also a screen I came across (can't find it at the moment...) which wasn't a web page and was impossible to read.

Maybe I need to invest in some reading glasses, though I don't need any for normal reading. I might have to call them my n900 glasses...
Thanks again for your help!