-no Java
-no Flash
-Bluetooth Possibly problematic
-Framesets Be displayed may not be correct.
Cable and iTunesgebunde
-No Netbook / Laptop Replacement
-No Built-in camera
-No Normal USB connection
-No Built Kartern reader
especially Flash and the lack of USB port are for me absolute "Go-Non" things. The Apple typical "do just that and you are allowed with your unit and you must not do or you can not do because as you do not allow" policy I find beschi ") =) #.
Conclusion:
The IPAD is a hit but not because it is so great but because it objectively yes comes from Apple and indeed what is special and an absolute must-have is.
Who wants to have an expensive toy with cool optics and has "too much" money or simply a fan of Apple, the IPAD can buy the others wait and buy a better-equipped competitor which (subjectively speaking) is not so cool but right from the price / performance.