If it is the iSlate, here is what I would like to see:
-10"-13.3" Touchscreen - .5" of less thick
-Decent Hard Drive and Ram (if it chooses to go more Macbook then eReader/iPhone style)
-Optical drive with writing capability (Blu-ray was cause sudden Heart palpitations)
-Something a little more rugged then the current iPhone 3G casing. After all it will be moved from desk to car to table to bag to etc. Would be nice not to worry about scratching the glossy finish every time.
-wireless/3g/4g connectivity of course
-optional wireless keyboard/mouse and docking station
If it can provide all the above with other common denominators found within a Macbook then I would happily pay $1000-$1300 for it.
Wow, Apple hasn't even put Blu-Ray into the MacPro or the iMac, I seriously doubt it'll be in the iSlate. iSlate is meant to be thin - optical drive =/= thin.
Also this thing is totally being positioned as between an iPhone and a MacBook - so no big HDD (solid state drive only, I'd think) - nice amount of RAM would be good - but evne the MacBook Air only has 2GB.
10" touchscreen is a given. No bigger. Only interesting thing will be is the 22" iMac Touchscreen rumours turn out to be true.
More rugged casing would be great - and there's been a lot of talk about it having an aluminum case - that would be great. I liked the iPhone 2G's case SO much better than my 3GS's.
Wireless connectivity is a given, as is bluetooth, so the optional keyboard/mouse, etc... could be done that way. Docking station would be sweet - there were those ideas of it sliding into an iMac - but more likely would maybe just be some sort of video out, via an iPod Doc Connector, or a Mini-Displayport.