No calculator, no chess for Sony. :-)
No web browsing.
No notepad.
And that Sony screen looks so tiny and cramped after you've used the iLiad for awhile.
Funny how the things the Iliad does well have nothing to do with eBooks?
Meanwhile the Sony has an ebook store and a certain group of people complaining loudly about how over priced it is.
My wife's Sony died after only 2 hours of operation, right in the middle of reading her shiny new ebook she just bought for it. Sony service and support were impossible and they wound up having us return the unit for a credit e.g. they couldn't handle replacing it!
Each has its good, bad and down right ugly.