Projector : Need the Dock connector to VGA adapter. You'd better countercheck first whether your projector is compatible or not. This is not cheap and many users end up unhappy buying it mainly because they failed to research properly what are the limitations of the product

Read users comments here : http://store.apple.com/hk/reviews/MC552ZM/...mco=MTc1MDc0NTk

And read Apple's OFFICIAL requirements/limitations  for product to work , which many users didn't bother : http://support.apple.com/kb/HT4108

Document editing : Personally I find it is poor. If you wish to do intensive office work with lots of documents edit - you will end up frustrated. The editing mode is poor and cumbersome and slow. I's suggest you test out the edit function in the apple reseller store to have a feel of it. If you can accpt it, good. I find this is one of the major weakness of the ipad.

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Added on December 6, 2010, 10:34 am
Strange - you are the second user here reporting this. Since day one, I always have to key in password to download any apps ( even free ones ). I was looking back at the settings and was unable to find any option to disable it. I am still on 3.2.1 though.

Maybe the new firmware 3.2.2 or 4.2.1  has this disable ? - any users can verify this ?