Ok, so I'll indulge in a bit of reading the tea leaves on the eve of Apple's tablet announcement: the rumored apple tablet will be called the 'iBook'.

• Jobs is reportedly quoted as saying, "This will be the most important thing I’ve ever done."  I'd rank re-inventing the book as a far grander undertaking than re-inventing the phone.
• The iBooks were re-named MacBooks back in 2006.  'Mac' is associated with computers:Mac Pro, MacBook; and 'i' is assciated with devices: iPod, iPhone, and now iBook (granted, 'iMac' does not fit into the devices classification).  
• Fits with all the rumors of the return of publishing.   "Apple has just re-invented the book.  Meet the iBook."  Cue the demo of full screen NYT app followed by National Geographic then a stack of textbooks.
• Finally, I like 'iBook' far more than 'iPad' or 'iSlate' (the current front runners for the name).  It rolls off the tongue and is simple and evocative of the product.