Given that Sony can't even be bothered to make a client which will work on Mac OS X or Linux, one would think they'd be aware of the likelihood of people purchasing the reader, but not buying any books.
Moreover, they've explicitly chosen to support a format (.pdf) which they don't support DRM on.
Also, they don't need to subsidize an on-going cost like the Kindle's wireless network.
So I would hope it'd be okay --- I'm certainly not helping things by not purchasing anything (can't since I don't have a sufficiently up-to-date Windows box)
William
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